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Simplistic framework of single-pixel-programmable metasurfaces integrated with a capsuled LED array Photonics Res. (IF 7.6) Pub Date : 2024-04-12 Yuxi Li, Jiafu Wang, Sai Sui, Ruichao Zhu, Yajuan Han, Hongya Chen, Xinmin Fu, Shaojie Wang, Cunqian Feng, and Shaobo Qu
Coding metasurfaces can manipulate electromagnetic wave in real time with high degree of freedom, the fascinating properties of which enrich the metasurface design with a wide range of application prospects. However, most of the coding metasurfaces are designed based on external excitation framework with the wired electrical or wireless light control devices, thus inevitably causing the interference
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Target-adaptive optical phased array lidar Photonics Res. (IF 7.6) Pub Date : 2024-04-12 Yunhao Fu, Baisong Chen, Wenqiang Yue, Min Tao, Haoyang Zhao, Yingzhi Li, Xuetong Li, Huan Qu, Xueyan Li, Xiaolong Hu, and Junfeng Song
Lidar based on the optical phased array (OPA) and frequency-modulated continuous wave (FMCW) technology stands out in automotive applications due to its all-solid-state design, high reliability, and remarkable resistance to interference. However, while FMCW coherent detection enhances the interference resistance capabilities, it concurrently results in a significant increase in depth computation, becoming
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Terahertz sensing with a 3D meta-absorbing chip based on two-photon polymerization printing Photonics Res. (IF 7.6) Pub Date : 2024-04-12 Xueer Chen, Longfang Ye, and Daquan Yu
The narrowband meta-absorbers exhibit significantly enhanced electromagnetic confinement capabilities, showcasing broad application prospects in sensing fields. They can be applied for biomarker detection, chemical composition analysis, and monitoring of specific gas in the environment. In this work, we propose a 3D meta-absorber with an out-of-plane plasma mechanism based on a two-photon printing
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Complex transmission matrix retrieval for a highly scattering medium via regional phase differentiation Photonics Res. (IF 7.6) Pub Date : 2024-04-08 Qiaozhi He, Rongjun Shao, Yuan Qu, Linxian Liu, Chunxu Ding, and Jiamiao Yang
Accurately measuring the complex transmission matrix (CTM) of the scattering medium (SM) holds critical significance for applications in anti-scattering optical imaging, phototherapy, and optical neural networks. Non-interferometric approaches, utilizing phase retrieval algorithms, can robustly extract the CTM from the speckle patterns formed by multiple probing fields traversing the SM. However, in
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Synergic action of linear dispersion, second-order nonlinearity, and third-order nonlinearity in shaping the spectral profile of a femtosecond pulse transporting in a lithium niobate crystal Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Lihong Hong, Yuanyuan Liu, and Zhi-Yuan Li
We present a detailed theoretical and numerical analysis on the temporal-spectral-spatial evolution of a high-peak-power femtosecond laser pulse in two sets of systems: a pure lithium niobate (LN) plate and a periodically poled lithium niobate (PPLN) plate. We develop a modified unidimensional pulse propagation model that considers all the prominent linear and nonlinear processes and carried out the
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Tunable polarization holographic gratings obtained by varying the ratio of intensities of the recording beams Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Hong Chen, Ziyao Lyu, and Changshun Wang
Polarization holography has been extensively applied in many fields, such as optical science, metrology, and biochemistry, due to its property of polarization modulation. However, the modulated polarization state of diffracted light corresponds strictly to that of incident light one by one. Here, a kind of tunable polarization holographic grating has been designed in terms of Jones matrices, and intensity-based
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Deep correlated speckles: suppressing correlation fluctuation and optical diffraction Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Xiaoyu Nie, Haotian Song, Wenhan Ren, Zhedong Zhang, Tao Peng, and Marlan O. Scully
The generation of speckle patterns via random matrices, statistical definitions, or apertures may not always result in optimal outcomes. Issues such as correlation fluctuations in low ensemble numbers and diffraction in long-distance propagation can arise. Instead of improving results of specific applications, our solution is catching deep correlations of patterns with the framework, Speckle-Net, which
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Aberration correction for deformable-mirror-based remote focusing enables high-accuracy whole-cell super-resolution imaging Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Wei Shi, Yingchuan He, Jianlin Wang, Lulu Zhou, Jianwei Chen, Liwei Zhou, Zeyu Xi, Zhen Wang, Ke Fang, and Yiming Li
Single-molecule localization microscopy (SMLM) enables three-dimensional (3D) investigation of nanoscale structures in biological samples, offering unique insights into their organization. However, traditional 3D super-resolution microscopy using high numerical aperture (NA) objectives is limited by imaging depth of field (DOF), restricting their practical application to relatively thin biological
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Varifocal occlusion in an optical see-through near-eye display with a single phase-only liquid crystal on silicon Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Woongseob Han, Jae-Won Lee, Jung-Yeop Shin, Myeong-Ho Choi, Hak-Rin Kim, and Jae-Hyeung Park
We propose a near-eye display optics system that supports three-dimensional mutual occlusion. By exploiting the polarization-control properties of a phase-only liquid crystal on silicon (LCoS), we achieve real see-through scene masking as well as virtual digital scene imaging using a single LCoS. Dynamic depth control of the real scene mask and virtual digital image is also achieved by using a focus
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Flexible 2 × 2 multiple access visible light communication system based on an integrated parallel GaN/InGaN micro-photodetector array module Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Zengyi Xu, Xianhao Lin, Zhiteng Luo, Qianying Lin, Jianli Zhang, Guangxu Wang, Xiaolan Wang, Fengyi Jiang, Ziwei Li, Jianyang Shi, Junwen Zhang, Chao Shen, and Nan Chi
In recent studies, visible light communication (VLC) has been predicted to be a prospective technique in the future 6G communication systems. To suit the trend of exponentially growing connectivity, researchers have intensively studied techniques that enable multiple access (MA) in VLC systems, such as the MIMO system based on LED devices to support potential applications in the Internet of Things
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Broadband high-efficiency plasmonic metalens with negative dispersion characteristic Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Yong-Qiang Liu, Yong Zhu, Hongcheng Yin, Jinhai Sun, Yan Wang, and Yongxing Che
Controlling the dispersion characteristic of metasurfaces (or metalenses) along a broad bandwidth is of great importance to develop high-performance broadband metadevices. Different from traditional lenses that rely on the material refractive index along the light trajectory, metasurfaces or metalenses provide a new regime of dispersion control via a sub-wavelength metastructure, which is known as
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Dielectric metasurface evolution from bulk to monolayer by strong coupling of quasi-BICs for second harmonic boosting Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Yinong Xie, Qianting Chen, Jin Yao, Xueying Liu, Zhaogang Dong, and Jinfeng Zhu
2D materials are promising candidates as nonlinear optical components for on-chip devices due to their ultrathin structure. In general, their nonlinear optical responses are inherently weak due to the short interaction thickness with light. Recently, there has been great interest in using quasi-bound states in the continuum (q-BICs) of dielectric metasurfaces, which are able to achieve remarkable optical
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Strong light–matter interactions based on excitons and the abnormal all-dielectric anapole mode with both large field enhancement and low loss Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Yan-Hui Deng, Yu-Wei Lu, Hou-Jiao Zhang, Zhong-Hong Shi, Zhang-Kai Zhou, and Xue-Hua Wang
The room temperature strong coupling between the photonic modes of micro/nanocavities and quantum emitters (QEs) can bring about promising advantages for fundamental and applied physics. Improving the electric fields (EFs) by using plasmonic modes and reducing their losses by applying dielectric nanocavities are widely employed approaches to achieve room temperature strong coupling. However, ideal
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Highly efficient nonuniform finite difference method for three-dimensional electrically stimulated liquid crystal photonic devices Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Zhenghao Guo, Mengjun Liu, Zijia Chen, Ruizhi Yang, Peiyun Li, Haixia Da, Dong Yuan, Guofu Zhou, Lingling Shui, and Huapeng Ye
Liquid crystal (LC) photonic devices have attracted intensive attention in recent decades, due to the merits of tunability, cost-effectiveness, and high efficiency. However, the precise and efficient simulation of large-scale three-dimensional electrically stimulated LC photonic devices remains challenging and resource consuming. Here we report a straightforward nonuniform finite difference method
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On-chip spiking neural networks based on add-drop ring microresonators and electrically reconfigurable phase-change material photonic switches Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Qiang Zhang, Ning Jiang, Yiqun Zhang, Anran Li, Huanhuan Xiong, Gang Hu, Yongsheng Cao, and Kun Qiu
We propose and numerically demonstrate a photonic computing primitive designed for integrated spiking neural networks (SNNs) based on add-drop ring microresonators (ADRMRs) and electrically reconfigurable phase-change material (PCM) photonic switches. In this neuromorphic system, the passive silicon-based ADRMR, equipped with a power-tunable auxiliary light, effectively demonstrates nonlinearity-induced
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High-speed GeSn resonance cavity enhanced photodetectors for a 50 Gbps Si-based 2 μm band communication system Photonics Res. (IF 7.6) Pub Date : 2024-04-01 Jinlai Cui, Jun Zheng, Yupeng Zhu, Xiangquan Liu, Yiyang Wu, Qinxing Huang, Yazhou Yang, Zhipeng Liu, Zhi Liu, Yuhua Zuo, and Buwen Cheng
Expanding the optical communication band is one of the most effective methods of overcoming the nonlinear Shannon capacity limit of single fiber. In this study, GeSn resonance cavity enhanced (RCE) photodetectors (PDs) with an active layer Sn component of 9% –10.8% were designed and fabricated on an SOI substrate. The GeSn RCE PDs present a responsivity of 0.49 A/W at 2 μm and a 3-dB bandwidth of approximately
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Photonic crystal nanolasers in polydimethylsiloxane thin film for sensing quantities leading to strain Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Tsan-Wen Lu, Kuang-Ming Lin, Zhen-Yu Wang, and Po-Tsung Lee
We propose and realize a 1D photonic crystal nanocavity laser embedded in a polydimethylsiloxane (PDMS) thin film. The nanolaser in PDMS exhibits a significant optical response to structural deformation. It can be attached to object surfaces or integrated into different configurations, enabling the detection of different quantities that induce strain in the film. In experiments, this nanolaser can
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Faster structured illumination microscopy using complementary encoding-based compressive imaging Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Zhengqi Huang, Yunhua Yao, Yilin He, Yu He, Chengzhi Jin, Mengdi Guo, Dalong Qi, Lianzhong Deng, Zhenrong Sun, Zhiyong Wang, and Shian Zhang
Structured illumination microscopy (SIM) has been widely applied to investigate intricate biological dynamics due to its outstanding super-resolution imaging speed. Incorporating compressive sensing into SIM brings the possibility to further improve the super-resolution imaging speed. Nevertheless, the recovery of the super-resolution information from the compressed measurement remains challenging
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High-speed impulsive stimulated Brillouin microscopy Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Jiarui Li, Taoran Le, Hongyuan Zhang, Haoyun Wei, and Yan Li
Brillouin microscopy, which maps the elastic modulus from the frequency shift of scattered light, has evolved to a faster speed for the investigation of rapid biomechanical changes. Impulsive stimulated Brillouin scattering (ISBS) spectroscopy has the potential to speed up measurement through the resonant amplification interaction from pulsed excitation and time-domain continuous detection. However
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Faster structured illumination microscopy using complementary encoding-based compressive imaging Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Zhengqi Huang, Yunhua Yao, Yilin He, Yu He, Chengzhi Jin, Mengdi Guo, Dalong Qi, Lianzhong Deng, Zhenrong Sun, Zhiyong Wang, and Shian Zhang
Structured illumination microscopy (SIM) has been widely applied to investigate intricate biological dynamics due to its outstanding super-resolution imaging speed. Incorporating compressive sensing into SIM brings the possibility to further improve the super-resolution imaging speed. Nevertheless, the recovery of the super-resolution information from the compressed measurement remains challenging
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Photonic crystal nanolasers in polydimethylsiloxane thin film for sensing quantities leading to strain Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Tsan-Wen Lu, Kuang-Ming Lin, Zhen-Yu Wang, and Po-Tsung Lee
We propose and realize a 1D photonic crystal nanocavity laser embedded in a polydimethylsiloxane (PDMS) thin film. The nanolaser in PDMS exhibits a significant optical response to structural deformation. It can be attached to object surfaces or integrated into different configurations, enabling the detection of different quantities that induce strain in the film. In experiments, this nanolaser can
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High-speed impulsive stimulated Brillouin microscopy Photonics Res. (IF 7.6) Pub Date : 2024-03-25 Jiarui Li, Taoran Le, Hongyuan Zhang, Haoyun Wei, and Yan Li
Brillouin microscopy, which maps the elastic modulus from the frequency shift of scattered light, has evolved to a faster speed for the investigation of rapid biomechanical changes. Impulsive stimulated Brillouin scattering (ISBS) spectroscopy has the potential to speed up measurement through the resonant amplification interaction from pulsed excitation and time-domain continuous detection. However
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Microscopic nonlinear optical activities and ultrafast carrier dynamics in layered AgInP2S6 Photonics Res. (IF 7.6) Pub Date : 2024-03-21 Zixin Wang, Ningning Dong, Yu Mao, Chenduan Chen, Xin Chen, Chang Xu, Zhouyuan Yan, and Jun Wang
Since the emergence of graphene, transition metal dichalcogenides, and black phosphorus, two-dimensional materials have attracted significant attention and have driven the development of fundamental physics and optoelectronic devices. Metal phosphorus trichalcogenides (MPX3 ), due to their large bandgap of 1.3–3.5 eV, enable the extension of optoelectronic applications to visible and ultraviolet (UV)
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Lensless opto-electronic neural network with quantum dot nonlinear activation Photonics Res. (IF 7.6) Pub Date : 2024-03-21 Wanxin Shi, Xi Jiang, Zheng Huang, Xue Li, Yuyang Han, Sigang Yang, Haizheng Zhong, and Hongwei Chen
With the swift advancement of neural networks and their expanding applications in many fields, optical neural networks have gradually become a feasible alternative to electrical neural networks due to their parallelism, high speed, low latency, and power consumption. Nonetheless, optical nonlinearity is hard to realize in free-space optics, which restricts the potential of the architecture. To harness
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Entanglement quantification via weak measurements assisted by deep learning Photonics Res. (IF 7.6) Pub Date : 2024-03-21 Mu Yang, Ya Xiao, Ze-Yan Hao, Yu-Wei Liao, Jia-He Cao, Kai Sun, En-Hui Wang, Zheng-Hao Liu, Yutaka Shikano, Jin-Shi Xu, Chuan-Feng Li, and Guang-Can Guo
Entanglement has been recognized as being crucial when implementing various quantum information tasks. Nevertheless, quantifying entanglement for an unknown quantum state requires nonphysical operations or post-processing measurement data. For example, evaluation methods via quantum state tomography require vast amounts of measurement data and likely estimation. Although a direct entanglement determination
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Universal silicon ring resonator for error-free transmission links Photonics Res. (IF 7.6) Pub Date : 2024-03-21 Junbo Zhu, Weiwei Zhang, Ke Li, Bharat Pant, Martin Ebert, Xingzhao Yan, Mehdi Banakar, Dehn T. Tran, Callum G. Littlejohns, Fuwan Gan, Graham Reed, and David J. Thomson
We report the design, fabrication, and characterization of a universal silicon PN junction ring resonator for C band error-free communication links operated up to 50 Gb/s with co-designed optical modulation and detection performance. The universal p-n junction ring device shows co-designed detection responsivity up to 0.84 A/W, in conjunction with a modulation efficiency of ∼4 V·mm and >8 dB optical
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High-performance, low-power, and flexible ultraviolet photodetector based on crossed ZnO microwires p-n homojunction Photonics Res. (IF 7.6) Pub Date : 2024-03-18 Shulin Sha, Kai Tang, Maosheng Liu, Peng Wan, Chenyang Zhu, Daning Shi, Caixia Kan, and Mingming Jiang
Low-power, flexible, and integrated photodetectors have attracted increasing attention due to their potential applications of photosensing, astronomy, communications, wearable electronics, etc. Herein, the samples of ZnO microwires having p -type (Sb-doped ZnO, ZnO:Sb) and n -type (Ga-doped ZnO, ZnO:Ga) conduction properties were synthesized individually. Sequentially, a p-n homojunction vertical structure
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Frequency-comb-linearized, widely tunable lasers for coherent ranging Photonics Res. (IF 7.6) Pub Date : 2024-03-18 Baoqi Shi, Yi-Han Luo, Wei Sun, Yue Hu, Jinbao Long, Xue Bai, Anting Wang, and Junqiu Liu
Tunable lasers, with the ability to continuously vary their emission wavelengths, have found widespread applications across various fields such as biomedical imaging, coherent ranging, optical communications, and spectroscopy. In these applications, a wide chirp range is advantageous for large spectral coverage and high frequency resolution. Besides, the frequency accuracy and precision also depend
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From non-scattering to super-scattering with Mie-tronics Photonics Res. (IF 7.6) Pub Date : 2024-03-13 Hooman Barati Sedeh and Natalia M. Litchinitser
Electric anapoles, arising from the destructive interference of primitive and toroidal electric dipole moments, have recently emerged as a fundamental class of non-scattering sources. On the other hand, super-scattering states represent the opposite regime wherein the scattering cross-section of a subwavelength particle exceeds the single-channel limit, leading to a strong scattering behavior. Here
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Observation of accurately designed bound states in the continuum in momentum space Photonics Res. (IF 7.6) Pub Date : 2024-03-13 Jiaju Wu, Jingguang Chen, Xin Qi, Zhiwei Guo, Jiajun Wang, Feng Wu, Yong Sun, Yunhui Li, Haitao Jiang, Lei Shi, Jian Zi, and Hong Chen
Bound states in the continuum (BICs) in artificial photonic structures have received considerable attention since they offer unique methods for the extreme field localization and enhancement of light-matter interactions. Usually, the symmetry-protected BICs are located at high symmetric points, while the positions of accidental BICs achieved by tuning the parameters will appear at some points in momentum
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Subnatural-linewidth fluorescent single photons Photonics Res. (IF 7.6) Pub Date : 2024-03-13 He-Bin Zhang, Gao-Xiang Li, and Yong-Chun Liu
Subnatural-linewidth single photons are of vital importance in quantum optics and quantum information science. According to previous research, it appears difficult to utilize resonance fluorescence to generate single photons with subnatural linewidth. Here we propose a universally applicable approach to generate fluorescent single photons with subnatural linewidth, which can be implemented based on
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Heterogeneous tunable III-V-on-silicon-nitride mode-locked laser emitting wide optical spectra Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Maximilien Billet, Stijn Cuyvers, Stijn Poelman, Artur Hermans, Sandeep Seema Saseendra, Tasuku Nakamura, Shinya Okamoto, Yasuhisa Inada, Kazuya Hisada, Taku Hirasawa, Joan Ramirez, Delphine Néel, Nicolas Vaissière, Jean Decobert, Philippe Soussan, Xavier Rottenberg, Gunther Roelkens, Jon Ø. Kjellman, and Bart Kuyken
We demonstrate a III-V-on-silicon-nitride mode-locked laser through the heterogeneous integration of a semiconductor optical amplifier on a passive silicon-nitride cavity using the technique of micro-transfer printing. In the initial phase of our study, we focus on optimizing the lasing wavelength to be centered at 1550 nm. This optimization is achieved by conducting experiments with 27 mode-locked
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Lead-free perovskite Cs2AgBiBr6 photodetector detecting NIR light driven by titanium nitride plasmonic hot holes Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Zijian Liu, Yuying Xi, Wenbo Zeng, Ting Ji, Wenyan Wang, Sitong Guo, Linlin Shi, Rong Wen, Yanxia Cui, and Guohui Li
Lead-free perovskite Cs2AgBiBr6 manifests great potential in developing high-performance, environmentally friendly, solution-processable photodetectors (PDs). However, due to the relatively large energy bandgap, the spectrum responses of Cs2AgBiBr6 PDs are limited to the ultraviolet and visible region with wavelengths shorter than 560 nm. In this work, a broadband Cs2AgBiBr6 PD covering the ultraviolet
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Fully integrated and broadband Si-rich silicon nitride wavelength converter based on Bragg scattering intermodal four-wave mixing Photonics Res. (IF 7.6) Pub Date : 2024-02-29 Valerio Vitali, Thalía Domínguez Bucio, Hao Liu, José Manuel Luque González, Francisco Jurado-Romero, Alejandro Ortega-Moñux, Glenn Churchill, James C. Gates, James Hillier, Nikolaos Kalfagiannis, Daniele Melati, Jens H. Schmid, Ilaria Cristiani, Pavel Cheben, J. Gonzalo Wangüemert-Pérez, Íñigo Molina-Fernández, Frederic Gardes, Cosimo Lacava, and Periklis Petropoulos
Intermodal four-wave mixing (FWM) processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same waveguide. This allows, in principle, to place signals in different spectral regions and satisfy the phase matching condition over considerably larger
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Power-efficient programmable integrated multiport photonic interferometer in CMOS-compatible silicon nitride Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Shuqing Lin, Yanfeng Zhang, Zhaoyang Wu, Shihao Zeng, Qing Gao, Jiaqi Li, Xiaoqun Yu, and Siyuan Yu
Silicon nitride (SiNx ) is an appealing waveguide material choice for large-scale, high-performance photonic integrated circuits (PICs) due to its low optical loss. However, SiNx PICs require high electric power to realize optical reconfiguration via the weak thermo-optic effect, which limits their scalability in terms of device density and chip power dissipation. We report a 6-mode programmable interferometer
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Large-scale error-tolerant programmable interferometer fabricated by femtosecond laser writing Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Ilya Kondratyev, Veronika Ivanova, Suren Fldzhyan, Artem Argenchiev, Nikita Kostyuchenko, Sergey Zhuravitskii, Nikolay Skryabin, Ivan Dyakonov, Mikhail Saygin, Stanislav Straupe, Alexander Korneev, and Sergei Kulik
We introduce a programmable eight-port interferometer with the recently proposed error-tolerant architecture capable of performing a broad class of transformations. The interferometer has been fabricated with femtosecond laser writing, and it is the largest programmable interferometer of this kind to date. We have demonstrated its advantageous error tolerance by showing an operation in a broad wavelength
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Long distance all-optical logic operations through a single multimode fiber empowered by wavefront shaping Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Zhipeng Yu, Tianting Zhong, Huanhao Li, Haoran Li, Chi Man Woo, Shengfu Cheng, Shuming Jiao, Honglin Liu, Chao Lu, and Puxiang Lai
Multimode fibers (MMFs) are a promising solution for high-throughput signal transmission in the time domain. However, crosstalk among different optical modes within the MMF scrambles input information and creates seemingly random speckle patterns at the output. To characterize this process, a transmission matrix (TM) can be used to relate input and output fields. Recent innovations use TMs to manipulate
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Simultaneous dual-region two-photon imaging of biological dynamics spanning over 9 mm in vivo Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Chi Liu, Cheng Jin, Junhao Deng, Junhao Liang, Licheng Zhang, and Lingjie Kong
Biodynamical processes, especially in system biology, that occur far apart in space may be highly correlated. To study such biodynamics, simultaneous imaging over a large span at high spatio-temporal resolutions is highly desired. For example, large-scale recording of neural network activities over various brain regions is indispensable in neuroscience. However, limited by the field-of-view (FoV) of
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Deep learning-based optical aberration estimation enables offline digital adaptive optics and super-resolution imaging Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Chang Qiao, Haoyu Chen, Run Wang, Tao Jiang, Yuwang Wang, and Dong Li
Optical aberrations degrade the performance of fluorescence microscopy. Conventional adaptive optics (AO) leverages specific devices, such as the Shack–Hartmann wavefront sensor and deformable mirror, to measure and correct optical aberrations. However, conventional AO requires either additional hardware or a more complicated imaging procedure, resulting in higher cost or a lower acquisition speed
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Full-polarization angular spectrum modeling of scattered light modulation Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Rongjun Shao, Chunxu Ding, Yuan Qu, Linxian Liu, Qiaozhi He, Yuejun Wu, and Jiamiao Yang
The exact physical modeling for scattered light modulation is critical in phototherapy, biomedical imaging, and free-space optical communications. In particular, the angular spectrum modeling of scattered light has attracted considerable attention, but the existing angular spectrum models neglect the polarization of photons, degrading their performance. Here, we propose a full-polarization angular
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Silicon photonic integrated interrogator for fiber-optic distributed acoustic sensing Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Zhicheng Jin, Jiageng Chen, Yanming Chang, Qingwen Liu, and Zuyuan He
Distributed acoustic sensing (DAS) technology has been a promising tool in various applications. Currently, the large size and relatively high cost of DAS equipment composed of discrete devices restrict its further popularization to some degree, and the photonic integration technology offers a potential solution. In this paper, we demonstrate an integrated interrogator for DAS on the silicon-on-insulator
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Time-space multiplexed photonic-electronic digital multiplier Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Wenkai Zhang, Bo Wu, Wentao Gu, Junwei Cheng, Hailong Zhou, Liao Chen, Wenchan Dong, Jianji Dong, and Xinliang Zhang
Optical computing has shown immense application prospects in the post-Moore era. However, as a crucial component of logic computing, the digital multiplier can only be realized on a small scale in optics, restrained by the limited functionalities and inevitable loss of optical nonlinearity. In this paper, we propose a time-space multiplexed architecture to realize large-scale photonic-electronic digital
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Observation of gapless corner modes of photonic crystal slabs in synthetic translation dimensions Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Wen-Jin Zhang, Hao-Chang Mo, Wen-Jie Chen, Xiao-Dong Chen, and Jian-Wen Dong
Second-order topological photonic crystals support localized corner modes that deviate from the conventional bulk-edge correspondence. However, the frequency shift of corner modes spanning the photonic band gap has not been experimentally reported. Here, we observe the gapless corner modes of photonic crystal slabs within a parameter space by considering translation as an additional synthetic dimension
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Cnoidal waves and their soliton limits in single mode fiber lasers Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Xiao Hu, Tupei Chen, Seongwoo Yoo, and Dingyuan Tang
Cnoidal waves are a type of nonlinear periodic wave solutions of the nonlinear dynamic equations. They are well known in fluid dynamics, but it is not the case in optics. In this paper we show both experimentally and numerically that cnoidal waves could be formed in a fiber laser either in the net normal or net anomalous cavity dispersion regime, especially because, as the pump power is increased,
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Wafer-level substrate-free YIG single crystal film for a broadband tunable terahertz isolator Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Xilai Zhang, Dan Zhao, Ding Zhang, Qiang Xue, Fei Fan, Yulong Liao, Qinghui Yang, and Qiye Wen
Yttrium iron garnet (YIG) is a promising material for various terahertz applications due to its special optical properties. At present, a high-quality YIG wafer is the desire of terahertz communities and it is still challenging to prepare substrate-free YIG single crystal films. In this work, we prepared wafer-level substrate-free La:YIG single crystal films, for the first time, to our knowledge. Terahertz
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Tuning exciton dynamics by the dielectric confinement effect in quasi-two-dimensional perovskites Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Minghuan Cui, Chaochao Qin, Yuanzhi Jiang, Shichen Zhang, Changjiu Sun, Mingjian Yuan, Yonggang Yang, and Yufang Liu
The dielectric confinement effect plays an essential role in optoelectronic devices. Existing studies on the relationship between the dielectric confinement and the photoelectric properties are inadequate. Herein, three organic spacers with different dielectric constants are employed to tune the exciton dynamics of quasi-two-dimensional (quasi-2D) Ruddlesden–Popper perovskite films. Femtosecond transient
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Miura origami based reconfigurable polarization converter for multifunctional control of electromagnetic waves Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Zhibiao Zhu, Yongfeng Li, Zhe Qin, Lixin Jiang, Wenjie Wang, Hongya Chen, Jiafu Wang, Yongqiang Pang, and Shaobo Qu
Polarization is one of the basic characteristics of electromagnetic (EM) waves, and its flexible control is very important in many practical applications. At present, most of the multifunction polarization metasurfaces are electrically tunable based on PIN and varactor diodes, which are easy to operate and have strong real-time performance. However, there are still some problems in them, such as few
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Multichannel coupling induced topological insulating phases with full multimerization Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Jun Li, Yaping Yang, and C.-M. Hu
We propose and experimentally realize a class of quasi-one-dimensional topological lattices whose unit cells are constructed by coupled multiple identical resonators, with uniform hopping and inversion symmetry. In the presence of coupling-path-induced effective zero hopping within the unit cells, the systems are characterized by complete multimerization with degenerate −1 energy edge states for open
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Independent control of circularly polarized light with exceptional topological phase coding metasurfaces Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Yicheng Li, Shicheng Wan, Shaoxuan Deng, Zhengwei Deng, Bo Lv, Chunying Guan, Jun Yang, Andrey Bogdanov, Pavel Belov, and Jinhui Shi
Exceptional points, as degenerate points of non-Hermitian parity-time symmetric systems, have many unique physical properties. Due to its flexible control of electromagnetic waves, a metasurface is frequently used in the field of nanophotonics. In this work, we developed a parity-time symmetric metasurface and implemented the 2π topological phase surrounding an exceptional point. Compared with Pancharatnam-Berry
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Indefinite metacavities coupled to a mirror: bound states in the continuum with anomalous resonance scaling Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Qiang Zhang, Peixiang Li, Zhiyuan Gu, Shaoding Liu, and Zejun Duan
Indefinite metacavities (IMCs) made of hyperbolic metamaterials show great advantages in terms of extremely small mode volume due to large wave vectors endowed by the unique hyperbolic dispersion. However, quality (Q ) factors of IMCs are limited by Ohmic loss of metals and radiative loss of leaked waves. Despite the fact that Ohmic loss of metals is inevitable in IMCs, the radiative loss can be further
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Experimental distillation of tripartite quantum steering with an optimal local filtering operation Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Qian-Xi Zhang, Xiao-Xu Fang, and He Lu
Multipartite Einstein-Podolsky-Rosen (EPR) steering admits multipartite entanglement in the presence of uncharacterized verifiers, enabling practical applications in semi-device-independent protocols. Such applications generally require stronger steerability, while the unavoidable noise weakens steerability and consequently degrades the performance of quantum information processing. Here, we propose
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Extreme single-excitation subradiance from two-band Bloch oscillations in atomic arrays Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Luojia Wang, Da-Wei Wang, Luqi Yuan, Yaping Yang, and Xianfeng Chen
Atomic arrays provide an important quantum optical platform with photon-mediated dipole–dipole interactions that can be engineered to realize key applications in quantum information processing. A major obstacle for such applications is the fast decay of the excited states. By controlling two-band Bloch oscillations of single excitation in an atomic array under an external magnetic field, here we show
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Full-Stokes metasurface polarimetry requiring only a single measurement Photonics Res. (IF 7.6) Pub Date : 2024-03-01 Chenglong Zheng, Hui Li, Jingyu Liu, Mengguang Wang, Huaping Zang, Yan Zhang, and Jianquan Yao
Polarization is crucial in various fields such as imaging, sensing, and substance detection. A compact, fast, and accurate polarization detection device is vital for these applications. Herein, we demonstrate a multifocus metalens for terahertz polarization detection that requires only a single measurement to obtain complete polarization parameters and reconstruct the polarization state of the incident
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Fully integrated and broadband Si-rich silicon nitride wavelength converter based on Bragg scattering intermodal four-wave mixing Photonics Res. (IF 7.6) Pub Date : 2024-02-29 Valerio Vitali, Thalía Domínguez Bucio, Hao Liu, José Manuel Luque González, Francisco Jurado-Romero, Alejandro Ortega-Moñux, Glenn Churchill, James C. Gates, James Hillier, Nikolaos Kalfagiannis, Daniele Melati, Jens H. Schmid, Ilaria Cristiani, Pavel Cheben, J. Gonzalo Wangüemert-Pérez, Íñigo Molina-Fernández, Frederic Gardes, Cosimo Lacava, and Periklis Petropoulos
Intermodal four-wave mixing (FWM) processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same waveguide. This allows, in principle, to place signals in different spectral regions and satisfy the phase matching condition over considerably larger
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Simultaneous dual-region two-photon imaging of biological dynamics spanning over 9 mm in vivo Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Chi Liu, Cheng Jin, Junhao Deng, Junhao Liang, Licheng Zhang, and Lingjie Kong
Biodynamical processes, especially in system biology, that occur far apart in space may be highly correlated. To study such biodynamics, simultaneous imaging over a large span at high spatio-temporal resolutions is highly desired. For example, large-scale recording of neural network activities over various brain regions is indispensable in neuroscience. However, limited by the field-of-view (FoV) of
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Silicon photonic integrated interrogator for fiber-optic distributed acoustic sensing Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Zhicheng Jin, Jiageng Chen, Yanming Chang, Qingwen Liu, and Zuyuan He
Distributed acoustic sensing (DAS) technology has been a promising tool in various applications. Currently, the large size and relatively high cost of DAS equipment composed of discrete devices restrict its further popularization to some degree, and the photonic integration technology offers a potential solution. In this paper, we demonstrate an integrated interrogator for DAS on the silicon-on-insulator
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Observation of gapless corner modes of photonic crystal slabs in synthetic translation dimensions Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Wen-Jin Zhang, Hao-Chang Mo, Wen-Jie Chen, Xiao-Dong Chen, and Jian-Wen Dong
Second-order topological photonic crystals support localized corner modes that deviate from the conventional bulk-edge correspondence. However, the frequency shift of corner modes spanning the photonic band gap has not been experimentally reported. Here, we observe the gapless corner modes of photonic crystal slabs within a parameter space by considering translation as an additional synthetic dimension
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Chiral forces in longitudinally invariant dielectric photonic waveguides Photonics Res. (IF 7.6) Pub Date : 2024-02-26 Josep Martínez-Romeu, Iago Diez, Sebastian Golat, Francisco J. Rodríguez-Fortuño, and Alejandro Martínez
We calculate numerically the optical chiral forces in rectangular cross-section dielectric waveguides for potential enantiomer separation. Our study considers force strength and time needed for separating chiral nanoparticles, mainly via quasi-TE guided modes at short wavelengths (405 nm) and the 90°-phase-shifted combination of quasi-TE and quasi-TM modes at longer wavelengths (1310 nm). Particle
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Cavity continuum Photonics Res. (IF 7.6) Pub Date : 2024-02-08 Fan Cheng, Vladimir Shuvayev, Mark Douvidzon, Lev Deych, and Tal Carmon
We experimentally demonstrate and numerically analyze large arrays of whispering gallery resonators. Using fluorescent mapping, we measure the spatial distribution of the cavity ensemble’s resonances, revealing that light reaches distant resonators in various ways, including while passing through dark gaps, resonator groups, or resonator lines. Energy spatially decays exponentially in the cavities
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Four-dimensional direct detection receiver enabling Jones-space field recovery with phase and polarization diversity Photonics Res. (IF 7.6) Pub Date : 2024-02-08 Qi Wu, Yixiao Zhu, Xueyang Li, Hexun Jiang, Chen Cheng, Mengfan Fu, Yikun Zhang, Qunbi Zhuge, Zhaohui Li, and Weisheng Hu
Data centers, the engines of the global Internet, rely on powerful high-speed optical interconnects. In optical fiber communication, classic direct detection captures only the intensity of the optical field, while the coherent detection counterpart utilizes both phase and polarization diversities at the expense of requiring a narrow-linewidth and high-stability local oscillator (LO). Herein, we propose