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In-suit doping Ta element in HNbWO6 nanosheets for enhancing photocatalytic performance J. Nanophotonics (IF 1.5) Pub Date : 2024-03-01 Jichao Zhu, Hongbo Zhao, Lifang Hu, Jie He
In this work, HNbxTa1-xWO6 (x=0, 0.3, 0.5, 1) nanosheets were successfully synthesized by an in-suit doping strategy at the molecular level and an exfoliation-restacking process. The crystal phase structures, surface morphologies, and chemical components of the obtained HNbxTa1-xWO6 nanosheets were systematically characterized by X-ray diffraction patterns, laser Raman spectroscopy, scanning electron
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Generation of all-optical Walsh–Hadamard code using silicon micro-ring resonator J. Nanophotonics (IF 1.5) Pub Date : 2024-03-01 Manjur Hossain, Kalimuddin Mondal, Jayanta Kumar Rakshit, Surajit Mandal, Amit Kumar Goyal, Yehia Massoud
Silicon micro-ring resonator-based generation of all-optical (2×2) Walsh–Hadamard code is proposed. The energy-efficient, ultra-high-speed, and compact nature of micro-ring resonator-based devices is essential for optical computing. Both MATLAB and the Ansys Lumerical finite difference time domain (FDTD) approach are used to implement the generation of all-optical (2×2) Walsh–Hadamard code. The proposed
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Preparation of high quantum yield nitrogen and sulfur co-doped carbon dots for sensitive detection of Cu2+ J. Nanophotonics (IF 1.5) Pub Date : 2024-03-01 YingTe Wang, SiRong Cheng, RongRong Wu, YuanYuan Zhang, BoHan Wang
Nitrogen and sulfur co-doped green fluorescent carbon dots (G-CDs) with quantum yield (QY) of 28.26% were synthesized by hydrothermal method with p-phenylenediamine and thiosemicarbazone as precursors. The synthesized G-CDs exhibit good sensitivity and anti-interference ability for detecting copper ion (Cu2+) by fluorescence quenching (λex=390 nm, λem=535 nm) with a linear range of 20 to 200 μM and
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Selectively sorting spin-dependent photons by Y-type plasmonic nanocircuits J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Chengkai Jiang, Xiaoman Luo, Yongqi Zhao, Jinhua Li, Youqiao Ma
The interaction between the chiral light and matter is vital to construct on-chip multi-functional photonic circuits. The well-known spin-orbit interaction has obtained significant attention in manipulation of light with different circular polarization states. We propose a robust Y-type surface plasmon nano-waveguide structure to effectively sort spin-dependent photons. The optimized simulation results
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Enhancing detectivity in mid-infrared photodetectors through structural parameter engineering in HgSe-HgTe colloidal quantum dots J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Mehdi Khodaverdizadeh, Asghar Asgari
The escalating demand for cost-effective, flexible, and solution-processed materials in infrared (IR) photodetection presents a compelling alternative to current epitaxially grown optoelectronic technology. Colloidal quantum dots (CQDs) have emerged as a versatile platform for optoelectronic device fabrication, offering affordability, low-temperature synthesis, and scalability. Specifically, mercury
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Ge2Sb2Te5 patch embedded ring resonator for optical switching J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Anoopshi Johari, Sanjeev Naithani, Baljinder Kaur, Abhinav Bhatnagar, Brajesh Kumar Kaushik
A Ge2Sb2Te5 (GST)-based microring resonator is designed and analyzed for optical switching-based applications. First, the optical properties of GST material having thicknesses of 130 to 230 nm on two commonly used substrates, i.e., silicon (Si) and silicon dioxide (SiO2), are investigated in detail. The phase-change property of GST plays an important role in tuning the resonant wavelength, absorption
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High-Q-factor multiple Fano resonance for sensitive refractive index sensors based on all-dielectric metasurface J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Zuxiong Liao, Yiping Huo, Tong Liu, Chen Zhao, Tao Zhang, Congmu Xu, Zhongyue Zhang
High-performance sensors can be efficiently realized with an all-dielectric metasurface using high-Q-factor Fano resonance. In this study, a numerical analysis of an all-dielectric metasurface with two square holes and one rectangular hole was conducted. Multiple Fano resonances with a high Q-factor and modulation depth were excited by a toroidal dipole, an electric quadrupole, and a magnetic dipole
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6H-SiC phoxonic microcavities with photonic and phononic bandgaps J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Peiwen Gao, Jingzhi Wu, Yanhong Wang
Light propagation and acoustic vibrations can be controlled by designing the bandgap of phoxonic crystals, which support photonic and phononic bandgaps simultaneously. In this study, we numerically investigated the optical and mechanical properties of a clover-shaped 6H-SIC crystal microcavity. The results indicate that the frequency range of the phononic bandgap can be manipulated by adjusting the
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Guided-mode resonance sensors with high sensitivity and asymmetric structures J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Hikmat Mohammed Hasan AlAameri, Mehrdad Shokooh-Saremi
An increasing amount of attention is being paid to guided-mode resonance (GMR) sensors since they can effectively detect small refractive indices (RIs) changes due to their narrow spectral linewidth and high efficiency. In this work, a binary, all-dielectric, asymmetric GMR (A-GMR) sensor structure with enhanced sensitivity and narrowed resonant linewidth is proposed to substantially improve the figure
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Enhancement of absorption by incorporating aluminum triangular nanostructures into perovskite J. Nanophotonics (IF 1.5) Pub Date : 2024-02-01 Ziyu Chen, Xiangju Li, Cong Chen
Since the emergence of perovskite as an exceptional light absorbing material, it has made significant advancements in enhancing the efficiency of solar cells. Building upon this foundation, the reconfiguration of internal optical properties within perovskite holds the promise of further improving efficiency. We investigated the influence of metallic aluminum triangular nanostructures on absorption
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Recent progress on inverse design for integrated photonic devices: methodology and applications J. Nanophotonics (IF 1.5) Pub Date : 2024-01-01 Ruoyu Shen, Bingzhou Hong, Xiuyan Ren, Fenghe Yang, Wei Chu, Haiwen Cai, Weiping Huang
Photonic integrated circuits (PICs) have attracted great attention as promising platforms for high-data-rate communications and high-performance computing. For the PICs, photonic devices with compatible materials, compact footprint, high-performance, and sophisticated functionalities are necessary building blocks. Design optimization to implement such devices for target applications and requirements
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Design and optimization of Bloch surface wave sensor with high sensitivity and quality factor using LiNbO3 J. Nanophotonics (IF 1.5) Pub Date : 2024-01-01 Yuanshi Wei, Jiakang Shi, Zhen Liu, Daohan Ge, Liqiang Zhang
This work presents a refractive index sensor based on Bloch surface waves (BSW) with high sensitivity and quality factor (Q). The sensor utilizes a one-dimensional photonic crystal TiO2/MgF2 as a distributed Bragg reflector and employs a LiNbO3 thin film as the top defect layer to excite BSW through a Kretschmann prism. Numerical simulations using the rigorous coupled wave analysis method are conducted
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2023 List of Reviewers J. Nanophotonics (IF 1.5) Pub Date : 2024-01-01
JNP thanks the reviewers who served the journal in 2023.
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Athermal waveguides and resonators with three zero-thermal-drift wavelengths J. Nanophotonics (IF 1.5) Pub Date : 2023-12-01 Peishan Han, Liuqing He, Lijuan Xu, Lin Zhang
Microresonators have been extensively studied in integrated photonics over the past two decades. However, the thermal frequency drift of a resonator limits its applications in practice. Athermal microresonators, as a passive solution, have become highly attractive. We propose two types of broadband athermal waveguides, with three zero-thermal-drift wavelengths achieved through mode anti-crossing effect
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All optical third order tunable ordinary differential equation solutions based on double Sagnac rings coupled MZI on silicon waveguide chips J. Nanophotonics (IF 1.5) Pub Date : 2023-12-01 Ming Xu, Longqi He, Bo Yang, Yiting Wei, Jianhua Ji, Maoguo Cai
At present, an all optical high-order tunable ordinary differential equation (ODE) solver is very difficult to implement. A novel all-optical first to third order linear ODEs solutions with tunable constant coefficients using double Sagnac rings coupled Mach–Zehnder-interferometer (DSMZI) on silicon waveguide chips are proposed. The structural composition and size of the DSMZI have been designed, and
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Polarization detection of ultraviolet light using ZnO microwires J. Nanophotonics (IF 1.5) Pub Date : 2023-12-01 Ziheng Wang, Xueying Chu, Jinhua Li, Dengkui Wang
Detectors with cost-effective, polarization-sensitive, and integrative functionalities are required for next-generation ultraviolet (UV) detection systems. Low-dimensional semiconductor materials have potential for optical device applications, especially polarization detection, because of their excellent polarization characteristics. Therefore, ultralong ZnO microwires, ∼0.5 to 1 cm long, were prepared
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Enhanced thermo-optic effects in silicon nitride photonic integrated circuits via polymer claddings J. Nanophotonics (IF 1.5) Pub Date : 2023-11-01 Marcel W. Pruessner, Nathan F. Tyndall, Kyle J. Walsh, Todd H. Stievater
Silicon nitride (SiN) has been receiving increased attention for photonic integrated circuits (PICs) due to its ultra-low optical losses, phase stability, and broadband transparency. However, SiN waveguides have a low thermo-optic coefficient and exhibit weak electro-optic effects. For this reason, most foundry-processed SiN PICs remain passive or exhibit inefficient tuning. In this work, we investigate
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Multiple nonreciprocal transmission based on defect modes of photonic crystals J. Nanophotonics (IF 1.5) Pub Date : 2023-11-01 Yu Shen, Xiaomeng Zhang, Guanxia Yu, Xin Chen, Haodong Wang, Guangyao Yuan
A one-dimensional multilayer structure consisting of two symmetric parts with defect layers is designed, and properties of the multiple nonreciprocal transmission are investigated due to symmetrically distributed magneto-optic layers with opposite magnetic fields in composite structures. The transmission coefficient and energy band diagram of the system are obtained based on transfer matrix method
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Optical field enhanced nonlinear optical performance of chalcogenide nanocomposite-based 1D photonic crystal J. Nanophotonics (IF 1.5) Pub Date : 2023-10-01 Reena Gadhwal, Hukum Singh, Ambika Devi
The optical field enhanced nonlinear optical (NLO) absorption of spin-coated 10-layer and 20-layer 1D photonic crystal structures is demonstrated. A significant 2.5 fold increase in the two-photon absorption coefficient is reported for multilayer structures as compared to a single layer of semiconductor nanocomposite (NC) having a comparable thickness. Under high-intensity illuminance, increased nonlinear
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Multiband topological states from band fold of photonic crystals J. Nanophotonics (IF 1.5) Pub Date : 2023-09-01 Fan Bu, Yun-Tuan Fang
To find more simple and universal method to realize the topological photonic crystals (PCs), we use the fold effect of bands of PCs and the Su–Schrieffer–Heeger model. Through the change of structure parameters, a lattice can undergo the transformation from topologically trivial to nontrivial states. The fold effect of bands leads to the multiple topological edge bands, which increase the band width
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Sandwich heterostructure of transition metal dichalcogenide/graphene as tunable lateral reflection shifter J. Nanophotonics (IF 1.5) Pub Date : 2023-09-01 Maryam Zoghi
The advent of nanotechnology has led to the inevitable need for miniaturization in optoelectronic devices. To achieve this goal, materials with low thickness, conductivity, and transparency, as well as a larger active area, must be developed. Experiments have proven that the opto-electrical properties of transition metal dichalcogenides (TMD)/graphene combinations are highly tunable. On the other hand
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Agricultural soil health monitoring using photonic crystal fiber based on combined principles of surface plasmon resonance and interferometry for lead ion detection J. Nanophotonics (IF 1.5) Pub Date : 2023-09-01 Sudipta Kumari Panigrahy, Preeti Das, Sukanta Kumar Tripathy
To monitor the health of agricultural soil, lead (Pb2 + ) ion measurement is essential. The various sensors for lead ion detection reported in the literature earlier are either expensive or have complicated designs. This inspired us to propose a fiber optic sensor that is simple in design, less expensive, and more efficient. A photonic crystal fiber (PCF)-unclad single mode fiber (SMF)-PCF hybrid configuration
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On-chip long-wave infrared gas sensor based on subwavelength grating waveguide J. Nanophotonics (IF 1.5) Pub Date : 2023-09-01 Jie Liao, Dong Zhang, Yuefeng Wang, Pengjun Wang, Qiang Fu, Shixun Dai, Weiwei Chen, Lingxiao Ma, Jun Li, Tingge Dai, Jianyi Yang
A long-wave infrared (LWIR) on-chip gas sensor based on subwavelength grating waveguide is proposed. By optimizing the grating structural parameters, the corresponding slow-light region is overlapped with the absorption spectrum of methane, which can greatly improve the light–gas interaction to achieve excellent sensing performance. The presented waveguide gas sensor is designed to operate at the wavelength
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Numerical analysis of surface acoustic wave driven carriers transport in GaAs/AlGaAs quantum well J. Nanophotonics (IF 1.5) Pub Date : 2023-08-01 Ziliang Pang, Weiwei Cao, Jinkun Zheng, YongLin Bai
Surface acoustic waves (SAWs) with a strong enough piezoelectric field can capture and transport electrons and holes. The presence of SAWs and their photo-generated carriers’ transport properties in the GaAs/AlGaAs quantum well (QW) is a potential scheme to achieve single photon sources and single photon detectors. We numerically solve the system of coupled Schrödinger and Poisson equations and the
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Non-volatile flexible-grid wavelength-selective switch using subwavelength-grating-Ge2Sb2Te5-assisted silicon microring resonators J. Nanophotonics (IF 1.5) Pub Date : 2023-08-01 Dongfei Zheng, Dejun Kong, Wei Liang, Pengjun Wang, Qiang Fu, Weiwei Chen, Shixun Dai, Jun Li, Tingge Dai, Jianyi Yang
A non-volatile flexible-grid wavelength-selective switch (NVFGWSS) based on subwavelength-grating-Ge2Sb2Te5 (GST)-assisted silicon microring resonators (MRRs) is proposed. By controlling the state of the subwavelength grating GST and the phase shifter, the transmission spectra of the designed subwavelength-grating-GST-assisted silicon MRRs are combined, and thus tunable bandwidths (BWs) are generated
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Synthesis and characterization of thin films of P3HT − G/MoS2 nanocomposites in photodetectors applications J. Nanophotonics (IF 1.5) Pub Date : 2023-08-01 Nagham M. Obaid, Amer Al-Nafiey, Ghaleb Al-Dahash
The nanocomposite, poly(3-hexylthiophene-2,5-diyl) (P3HT)–graphene/molybdenum disulfide (MoS2), was for the first time fabricated by the pulse laser ablation (PLA) method with different numbers of laser pulses deposited onto a porous silicon (PSi) substrate using the drop-casting technique. Nanocrystalline PSi films are prepared by electrochemical etching of a P-type silicon wafer. The optical properties
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Calculation of the excited states of two-dimensional MoSi2N4 layered material semi doped with Cr and W respectively J. Nanophotonics (IF 1.5) Pub Date : 2023-08-01 Chuangjian Liang, Xudong Tang, Wangyang Ding, Xinli Liu, Nan Chen, Xiang Lu
The optical absorption properties of the two-dimensional (2D) MoSi2N4 monolayer is often a focus of research. By semi doping Cr and W at M sites, the influence of M-site atoms on the optical absorption properties of MA2Z4 series materials was investigated. The results show that the atomic layer spacing of 2D materials has some changes after the semi doping of the Cr and W elements, but the entire crystal
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On temporally periodic physical vapor deposition on random rough surfaces (Erratum) J. Nanophotonics (IF 1.5) Pub Date : 2023-08-01 Ricardo A. Fiallo, Chengzhi Li, Akhlesh Lakhtakia, Mark W. Horn
Publisher’s note corrects a typographical error in a figure.
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Deep learning aids simultaneous structure–material design discovery: a case study on designing phase change material metasurfaces J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Soumyashree S. Panda, Sushil Kumar, Devdutt Tripathi, Ravi S. Hegde
The capabilities of modern precision nanofabrication and the wide choice of materials [plasmonic metals, high-index dielectrics, phase change materials (PCM), and 2D materials] make the inverse design of nanophotonic structures such as metasurfaces increasingly difficult. Deep learning is becoming increasingly relevant for nanophotonics inverse design. Although deep learning design methodologies are
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Plasmonic switch based on asymmetric cavities with embedding square of gold inside the cavities J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Majid Ghadrdan, Mojtaba Shahraki, Mohammad Ali Mansouri-Birjandi
We proposed an all-optical plasmonic switch based on metal-insulator-metal structures. We used the intrinsic nonlinear properties of gold to implement the switch. The proposed switch consists of a bus waveguide side coupled with a pair of asymmetric vertical cavities. We obtained the transmission spectrum of the structure for low input intensities. The results showed that a sharp dip occurs at the
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On temporally periodic physical vapor deposition on random rough surfaces J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Ricardo A. Fiallo, Chengzhi Li, Akhlesh Lakhtakia, Mark W. Horn
Temporally periodic physical vapor deposition (TP-PVD) is commonly used to fabricate Bragg mirrors on planar surfaces. These devices are notionally of infinite transverse extent and homogeneity, but they have periodically nonhomogeneous electromagnetic constitutions in the thickness direction. Undertaking TP-PVD in two different formats, we found that the Bragg phenomenon can be avoided in certain
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Design and simulation of refractive index sensor based on suspended composite hybrid plasmonic waveguide for sensing mass density of polarizable hydrogen gas J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Babak Moeinimaleki, Kaveh Moeinimaleki, Zahra Mardani, Saeid Karamzadeh
Hybrid plasmonic waveguides (HPWs) are capable of supporting subwavelength optical modes. In a composite HPW (CHPW), the propagation loss can be minimized by adjusting the geometrical parameters of its component layers to reduce field flux inside its lossy metal layer. A ring resonator-based plasmonic sensor based on a waveguide structure of suspended CHPW (SCHPW) is designed for gas sensing applications
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Performance enhancement of thin film solar cells using silver triangular and rectangular grating on the back electrode J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Safa Saminezhad, Gholam Reza Kiani, Amir Asgharian
Thin film solar cells, which are the second generation of solar cells, have recently attracted much attention due to their low cost and abundance of fabrication materials. But due to the reduction in the thickness of the absorber layer in this generation to <0.5 μm, the amount of absorption is greatly reduced and the short circuit current density (Jsh) decreased due to the reduction of the light path
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Light absorption enhancement of ultrathin crystalline silicon solar cells with frequency upconversion layer using silver hemisphere nanoparticles J. Nanophotonics (IF 1.5) Pub Date : 2023-07-01 Chenbo Wang, Zhuoqun Li, Dan Liang, Zhe Yin, Sahibzada Muhammad Zaheer, Gang Yang, Lingguang Liu, Fei Bian, Zhaopeng Xu
High-efficiency and ultrathin crystalline silicon solar cells (SCs) with a frequency upconversion (UC) layer and an array of silver nanohemispheres were presented. The light-trapping performances of SCs embedded with different volume ratios and radii of Ag nanohemispheres were systematically studied by finite-element analysis. The simulation results show that the short-circuit current density of the
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Tunable circular dichroism based on chiral photonic crystals J. Nanophotonics (IF 1.5) Pub Date : 2023-06-01 Wanlu Bian, Guodong Zhu, Yurui Fang
Chiroptical effects, which include the dichroism of left and right circularly polarized light, can be observed in structures made up of nanoscale chiral elements. We introduce a holistically nondestructive tunable chiral perforated photonic crystal film. The structure exhibits a strong photon spin selection effect at a wavelength of 810 nm, resulting in a significant circular dichroism (CD) value.
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Localized surface plasmon enhanced carbon dots based solar-blind ultraviolet photodetectors by Al nanoparticles J. Nanophotonics (IF 1.5) Pub Date : 2023-06-01 Xinyue Chen, Zhiwei Zhao, Xi Jia, Yanling Yu, Yong Fang, Mengru Zhu, Zhengjin Weng, Wei Lei, Suhaidi Bin Shafe, Mohd Nazim Mohtar
Localized surface plasmon resonance (LSPR) can enhance the optical field density around the nanostructure to improve devices’ light absorption. Aluminum nanoparticles (Al NPs) were introduced into solar-blind photodetectors with carbon dots (CDs) as a photosensitive material. It is found that by inserting Al NPs into the device, the switching ratio, responsivity, and external quantum efficiency reached
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Ultra-compact silicon multimode waveguide bends based on special curves for dual polarizations J. Nanophotonics (IF 1.5) Pub Date : 2023-06-01 Juanli Wang, Shangsen Sun, Runsen Zhang, Fengchun Zhang, Ning Zhu, Yujing Zhang
Multimode waveguide bends (MWBs) with very compact sizes are the key building blocks in the applications of different mode-division multiplexing (MDM) systems. To further increase the transmission capacity, the silicon MWBs for dual polarizations are of particular interest considering the very distinct mode behaviors under different polarizations in the silicon waveguides. Few silicon MWBs suitable
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Compact and broadband polarization beam splitter on lithium-niobate-on-insulator using a hybrid plasmonic waveguide J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Jiakang Shi, Daohan Ge, Mengcheng Lv, Yujie Zhou, Guoxin Cui, Liqiang Zhang
A compact and broadband polarization beam splitter (PBS) is proposed based on an asymmetric directional coupler consisting of a hybrid plasmonic waveguide and a ridge waveguide on lithium-niobate-on-insulator. Due to the surface plasma polariton (SPP) effect, the phase-matching condition is satisfied for transverse electric polarization, whereas the transverse magnetic polarization has a significant
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Effect of hydrostatic pressure on the Auger coefficient of InGaN/GaN multiple-quantum-well laser diode J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Rajab Yahyazadeh, Zahra Hashempour
A numerical model was used to analyze the Auger coefficient in a c-plane InGaN/GaN multiple-quantum-well laser diode (MQWLD) under hydrostatic pressure. Finite difference techniques were employed to acquire energy Eigenvalues and their corresponding Eigenfunctions of InGaN/GaN MQWLD, and the hole Eigenstates were calculated via a 6 × 6 k.p method under applied hydrostatic pressure. It was found that
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Optimized absorption performance of a terahertz single mode metamaterial for gas and liquid detection J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Junzhang Zhu, Xuebo Zhang, Min Zhong
Metamaterial absorbers are widely used in the sensing field based on their rich resonance behaviors. So far, the applications of metamaterial absorbers in gas sensing have not been paid much attention by researchers. A single-mode narrow bandwidth THz metamaterial absorber is suggested and validated. An absorption peak is excited based on local surface polarization mode resonance and dielectric loss
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Dual symmetry breaking tunable bound states in the continuum in all dielectric split ring metamaterials J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Zhiqiang Hao, Lei Wang, Zhenlin Sun
Dual-symmetry breakings including permittivity asymmetry and geometry asymmetry have been studied in all dielectric split-ring metamaterials supported bound states in the continuum. For any single symmetry breaking, the proposed metamaterials can support simultaneously dual quasi-bound states in the continuum (quasi-BICs). Multipolar decomposition reveals that dual quasi-BICs induced by permittivity
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Tunable multiple plasmon-induced transparencies in multiple T-shaped cavities waveguide based on Dirac semimetals J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Junya Chen, Huifang Zhang, Xin Gu, Ying He, Hongshi Ren
We study the multiple plasmon-induced transparencies (PIT) in the waveguide structure based on bulk Dirac semimetal (BDS) containing multiple side-coupled T-shaped cavities. Using the finite element method, we mainly investigate the transmission spectra, the transmission phase shifts, the delay times, and the magnetic field distributions of the two T-shaped cavities waveguide structure. It is shown
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Plasmonic color filter with nanoring aperture array J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Jiangtao Lv, Run Li, Guangyuan Si
The plasmonic color filter with sub-wavelength nanometal structure has the advantages that the traditional organic dye color filter cannot replace because of its unique characteristics. However, most plasmonic color filters have low selectivity and weak resonance. It limits their further applications and accuracy. We introduce a plasmonic color filter with a nanoring aperture array, which can exhibit
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One-dimensional photonic crystal-based biosensor for the detection of glucose concentration in human urine J. Nanophotonics (IF 1.5) Pub Date : 2023-05-01 Abdelkarim El Mouncharih, Rabi Takassa, Omar Farkad, Abdelaziz Tchenka, Fatima Elfatouaki, El Alami Ibnouelghazi, Driss Abouelaoualim
A biosensor structure based on a ternary photonic crystal (TPC) containing a defect is designed and simulated. This proposed biosensor detects the concentration of glucose in human urine. Based on the transfer matrix method, we theoretically studied the transmission spectra through the TPC presuming blood samples with different refractive indices (RIs) infiltrated into the defect layer of the proposed
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Design of graphene-like nanowall arrays and their optical absorption properties J. Nanophotonics (IF 1.5) Pub Date : 2023-04-01 Jianhua Zeng, Shuqi Hu, Lei Chen, Jianrong Yang, Jing He
Bulk-layered materials were constructed into nanowall arrays, and their optical absorption properties were investigated by the finite-difference time-domain technique. The results showed that the nanowall array exhibits excellent absorption properties in both ultraviolet and visible bands. For WS2, MoS2, WSe2, MoSe2, and MoTe2, when the excitation wavelength increases to a certain value, the absorption
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Detection of viral and bacterial diseases using 2D photonic crystal-based elliptical ring resonator sensor J. Nanophotonics (IF 1.5) Pub Date : 2023-04-01 Archana Sahoo, Anshu D. Varshney
Our proposed work analyzes and models the photonic crystal (PhC)-based elliptical ring resonator for detecting viral and bacterial infections. Optical sensors show extreme results as sensing devices. So, they are broadly accepted in the medical field for the rapid and effective diagnosis of diseases. Optical biosensors are designed to detect cancer, malaria, typhoid, tuberculosis, etc. The principle
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Growth and optical properties of ZnO nanorods on the full surface of porous silicon by sol–gel method and oil bath method J. Nanophotonics (IF 1.5) Pub Date : 2023-04-01 Liqiang Zhang, Zhou Zeng, Jiakang Shi, Kai Gao, Daohan Ge
A method for the preparation of composites that allow the growth of ZnO nanorod structures on the full surface of porous silicon (polished surface, pore walls, and pore bottoms) is presented. The porous silicon is obtained by electrochemical etching of P-type silicon (100). The nanorods were grown in two steps: a sol–gel method and an oil bath method. The morphology of ZnO nanorods at different concentrations
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Optical fiber Fabry-Perot temperature sensor based on metal welding technology J. Nanophotonics (IF 1.5) Pub Date : 2023-04-01 Peilun Chen, Yue Wu, Yaqi Wang
We present an optical fiber Fabry-Perot (F-P) temperature sensor based on metal welding technology. The fiber sensor is composed of a single-mode fiber and a metal capillary that are encapsulated by metal welding technology. The relationship between the cavity length and sensitivity is analyzed theoretically. The experimental results show that the sensitivity of the fabricated sensor reaches 3.85 nm
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Independently tunable Fano resonance from quasibound state in the continuum in hybrid graphene–dielectric metasurface for magnetic field tunability J. Nanophotonics (IF 1.5) Pub Date : 2023-03-01 Meng Wang, Wudeng Wang
We study an independently tunable Fano resonance from quasibound state in the continuum and polarization-independent toroidal dipole resonance in hybrid graphene–dielectric metasurface consisting of a nanoring and a cross-shaped nanobar. The unique structural properties of the proposed metasurface can support directional toroidal dipole mode, where the asymmetric magnetic field enhancement can be dynamically
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Analysis of laser-induced transient population gratings by different types of exciting pulse J. Nanophotonics (IF 1.5) Pub Date : 2023-03-01 Shuanggen Zhang, Shengdong Li, Yangbo Bai, Kai Huang
Motivated by atomic response to different initial coherent optical fields, we comparatively studied transient population grating (TPG) induced by successive pulse train. Time delay and pump pulse duration dependence of TPG is achieved by numerically solving the density matrix equations. Results reveal that the creation and erasure of TPG is possible by choosing the appropriate pulse parameters, which
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Implementing commercial inverse design tools for compact, phase-encoded, plasmonic digital logic devices J. Nanophotonics (IF 1.5) Pub Date : 2023-03-01 Michael Efseaff, Kyle Wynne, Krishna Narayan, Mark C. Harrison
Numerical simulations have become an essential design tool in the field of photonics, especially for nanophotonics. In particular, 3D finite-difference-time-domain (FDTD) simulations are popular for their powerful design capabilities. Increasingly, researchers are developing or using inverse design tools to improve device footprints and performance. These tools often make use of 3D FDTD simulations
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Single microhole per pixel for thin Ge-on-Si complementary metal-oxide semiconductor image sensor with enhanced sensitivity up to 1700 nm J. Nanophotonics (IF 1.5) Pub Date : 2023-03-01 Ekaterina Ponizovskaya-Devine, Ahmed S. Mayet, Amita Rawat, Ahasan Ahamed, Shih-Yuan Wang, Aly F. Elrefaie, Toshishige Yamada, M. Saif Islam
We present a germanium “Ge-on-Si” CMOS image sensor with backside illumination for the near-infrared (NIR) electromagnetic waves (wavelength range 300 to 1700 nm) detection essential for optical sensor technology. The microholes help to enhance the optical efficiency and extend the range to the 1.7-μm wavelength. We demonstrate an optimization for the width and depth of the microholes for maximal absorption
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Strong coupling between longitudinal and U-shaped localized surface plasmon modes in rectangular grating-shaped gold nanostructures J. Nanophotonics (IF 1.5) Pub Date : 2023-03-01 Xiaorui Wang, Shijie Xu
Strong couplings between localized surface plasmon resonance (LSPR) modes and single quantum emitters have been intensively investigated recently, and meanwhile the coupling between different LSPR modes inside individual metallic nanoparticle is still rarely researched. Herein, the strong coupling is investigated for different LSPR modes inside individual rectangular-grating-shaped gold nanostructure
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Assessment of Bloch surface wave-based one-dimensional photonic crystal sensor using ultraviolet range J. Nanophotonics (IF 1.5) Pub Date : 2023-02-01 Kalpana Sagar, Ajay Kumar
To generate resonance in the ultraviolet (UV) wavelength region, we have developed a Bragg mirror structure with a SiO2 top layer. This paper shows the wavelength at which sensitivity occurs by modifying the architecture of the one-dimensional photonic crystal (1D-PhC) structure appropriately. The structural parameters are adjusted to excite a Bloch surface wave with a wavelength of 256 and 281 nm
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Parallel computing for modeling multilayer photonic crystals J. Nanophotonics (IF 1.5) Pub Date : 2023-02-01 Andreas T. D. Richardson, Shavaiz I. Mir, Stephen M. Morris, Steve J. Elston, Ali K. Yetisen, Yunuen Montelongo
A simulation framework is developed for the two-dimensional finite-difference time-domain to model multilayer photonic crystal structures. The framework includes the recording process in a photosensitive material through a coherent light source and then a subsequent interrogation with a broadband spectrum. Moreover, the tunable response of the photonic crystal is simulated for different film thicknesses
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Numerical investigation of graphene-silica-silver based VLSI interconnects with tunable multiband infrared absorber for 3D integrated circuits J. Nanophotonics (IF 1.5) Pub Date : 2023-02-01 Sivakumar Sabapathy Arumugam
We propose the multilayer silver-silica-graphene-based very large-scale integration interconnects assisted by a tunable perfect absorption structure over the infrared frequency spectrum of the third window of the optical communication for three-dimensional (3D) integrated circuits (ICs). This absorber is numerically investigated for the different cylindrical silver resonator-based squared geometries
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Polarization and angular insensitive perfect metasurface absorber in near-ultraviolet region J. Nanophotonics (IF 1.5) Pub Date : 2023-01-01 Xuan Liu, Yuzhao Zhang, Muhua Li, Chao Feng, Yan Zhao
Optical perfect absorbers have attracted much attention due to their wide applications in areas including optical sensors, energy utilization, and photocatalysis. We present the design, characterization, and experimental demonstration of a narrowband, polarization- and angular-insensitive, high-performance plasmonic metasurface absorber in near-ultraviolet region. A measured absorption peak of 89%
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Graphene/molybdenum disulfide nanocomposites: characterization and optoelectronic application J. Nanophotonics (IF 1.5) Pub Date : 2023-01-01 Nagham M. Obaid, Amer Al-Nafiey, Ghaleb Al-Dahash
The ability to modify and shape the surface of polymer and composite materials is crucial for a number of biological and electronics applications. Molybdenum disulfide (MoS2) and graphene are two-dimensional materials that have distinctive electrical and optical properties that are useful in many optoelectronic applications. The latest applications of graphene / MoS2, as well as heterostructure manufacturing
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Nonreciprocal optical properties of magneto-optical film doped with metal particles based on the effective medium theory J. Nanophotonics (IF 1.5) Pub Date : 2023-01-01 Jianfei Han, Kaifeng Wei, Han Wang
In search of next-generation optical information functional materials, magneto-optical microstructures have attracted great attention since they can break Kirchhoff’s law and produce higher photoelectric conversion efficiency. Theoretical studies using finite-difference time-domain and transfer matrix methods have been performed to investigate the optical properties of magneto-optical microstructures
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Enhancing light extraction efficiency of GaN-based light-emitting diodes with reticulated photonic crystals J. Nanophotonics (IF 1.5) Pub Date : 2023-01-01 Meng Liu, Xuan Zheng, Zisu Gong, Renqi Gao, Juan Li, Wenfei Liu
We have proposed reticulated photonic crystals (PhCs) on the top surface of conventional light-emitting diodes (LEDs) to increase the light extraction efficiency (LEE). The rigorous electromagnetic simulations based on the three-dimensional finite-difference time-domain method were carried out to investigate the optical properties of reticulated PhCs LEDs and mechanisms of reticulated PhCs improving