当前期刊: Nanophotonics Go to current issue    加入关注    本刊投稿指南
显示样式:        排序: IF: - GO 导出
我的关注
我的收藏
您暂时未登录!
登录
  • Nanostructured inorganic electrochromic materials for light applications
    Nanophotonics (IF 7.491) Pub Date : 2020-11-20
    Wu Zhang; Haizeng Li; Eric Hopmann; Abdulhakem Y. Elezzabi

    Electrochromism, an emerging energy conversion technology, has attracted immense interest due to its various applications including bistable displays, optical filters, variable optical attenuators, optical switches, and energy-efficient smart windows. Currently, the major drawback for the development of electrochromism is the slow switching speed, especially in inorganic electrochromic materials. The

    更新日期:2020-11-23
  • Large-scale, power-efficient Au/VO2 active metasurfaces for ultrafast optical modulation
    Nanophotonics (IF 7.491) Pub Date : 2020-11-17
    Tongtong Kang; Zongwei Ma; Jun Qin; Zheng Peng; Weihao Yang; Taixing Huang; Shilin Xian; Shuang Xia; Wei Yan; Yucong Yang; Zhigao Sheng; Jian Shen; Chaoyang Li; Longjiang Deng; Lei Bi

    Active metasurfaces, in which the optical property of a metasurface device can be controlled by external stimuli, have attracted great research interest recently. For optical switching and modulation applications, high-performance active metasurfaces need to show high transparency, high power efficiency, as well as ultrafast switching and large-scale fabrication capability. This paper reports Au/VO2-based

    更新日期:2020-11-22
  • Subwavelength sorting of full-color based on anti-Hermitian metasurfaces
    Nanophotonics (IF 7.491) Pub Date : 2020-11-17
    Seong Jun Kim; Changhyun Lee; Sangtae Jeon; Junghyun Park; Soo Jin Kim

    Splitting the spectrum of incident light at nanoscale has been of great scientific and practical interest due to its potential application in various optical sensors. For many years, researchers have been striving to realize the full-color sorting of light at subwavelength scale, while keeping the loss of incident photons to a minimum. In this article, we present semiconductor-based metasurfaces that facilitate

    更新日期:2020-11-22
  • Disorder effects in nitride semiconductors: impact on fundamental and device properties
    Nanophotonics (IF 7.491) Pub Date : 2020-11-18
    Claude Weisbuch; Shuji Nakamura; Yuh-Renn Wu; James S. Speck

    Semiconductor structures used for fundamental or device applications most often incorporate alloy materials. In “usual” or “common” III–V alloys, based on the InGaAsP or InGaAlAs material systems, the effects of compositional disorder on the electronic properties can be treated in a perturbative approach. This is not the case in the more recent nitride-based GaInAlN alloys, where the potential changes

    更新日期:2020-11-22
  • In situ charge carrier dynamics of semiconductor nanostructures for advanced photoelectrochemical and photocatalytic applications
    Nanophotonics (IF 7.491) Pub Date : 2020-11-19
    Ting-Hsuan Lai; Ken-ichi Katsumata; Yung-Jung Hsu

    Using in situ ultrafast laser spectroscopic techniques to monitor the charge dynamics of semiconductor photocatalysts under operating conditions is essential for digging out the veritable interactions between charge carriers and the reactive species. This real-time observation is desirable for optimizing individual components and their integration in advanced photoelectrochemical (PEC) and photocatalytic

    更新日期:2020-11-22
  • Engineering photonic environments for two-dimensional materials
    Nanophotonics (IF 7.491) Pub Date : 2020-11-19
    Xuezhi Ma; Nathan Youngblood; Xiaoze Liu; Yan Cheng; Preston Cunha; Kaushik Kudtarkar; Xiaomu Wang; Shoufeng Lan

    A fascinating photonic platform with a small device scale, fast operating speed, as well as low energy consumption is two-dimensional (2D) materials, thanks to their in-plane crystalline structures and out-of-plane quantum confinement. The key to further advancement in this research field is the ability to modify the optical properties of the 2D materials. The modifications typically come from the

    更新日期:2020-11-22
  • Adjoint-optimized nanoscale light extractor for nitrogen-vacancy centers in diamond
    Nanophotonics (IF 7.491) Pub Date : 2020-11-17
    Raymond A. Wambold; Zhaoning Yu; Yuzhe Xiao; Benjamin Bachman; Gabriel Jaffe; Shimon Kolkowitz; Jennifer T. Choy; Mark A. Eriksson; Robert J. Hamers; Mikhail A. Kats

    We designed a nanoscale light extractor (NLE) for the efficient outcoupling and beaming of broadband light emitted by shallow, negatively charged nitrogen-vacancy (NV) centers in bulk diamond. The NLE consists of a patterned silicon layer on diamond and requires no etching of the diamond surface. Our design process is based on adjoint optimization using broadband time-domain simulations and yields

    更新日期:2020-11-21
  • Thomas–Reiche–Kuhn (TRK) sum rule for interacting photons
    Nanophotonics (IF 7.491) Pub Date : 2020-11-18
    Salvatore Savasta; Omar Di Stefano; Franco Nori

    The Thomas–Reiche–Kuhn (TRK) sum rule is a fundamental consequence of the position–momentum commutation relation for an atomic electron, and it provides an important constraint on the transition matrix elements for an atom. Here, we propose a TRK sum rule for electromagnetic fields which is valid even in the presence of very strong light–matter interactions and/or optical nonlinearities. While the

    更新日期:2020-11-21
  • Ultracompact and low-power-consumption silicon thermo-optic switch for high-speed data
    Nanophotonics (IF 7.491) Pub Date : 2020-11-11
    Ruihuan Zhang; Yu He; Yong Zhang; Shaohua An; Qingming Zhu; Xingfeng Li; Yikai Su

    Ultracompact and low-power-consumption optical switches are desired for high-performance telecommunication networks and data centers. Here, we demonstrate an on-chip power-efficient 2 × 2 thermo-optic switch unit by using a suspended photonic crystal nanobeam structure. A submilliwatt switching power of 0.15 mW is obtained with a tuning efficiency of 7.71 nm/mW in a compact footprint of 60 μm × 16 μm

    更新日期:2020-11-13
  • Polariton panorama
    Nanophotonics (IF 7.491) Pub Date : 2020-11-11
    D. N. Basov; Ana Asenjo-Garcia; P. James Schuck; Xiaoyang Zhu; Angel Rubio

    In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic phenomena and systems as they appear in the literature on quantum materials and quantum optics. Our summary includes at least 70 different types of polaritonic light–matter dressing effects. This summary also unravels a broad panorama of the physics and applications of polaritons. A constantly updated version

    更新日期:2020-11-13
  • Near-infrared dual-wavelength plasmonic switching and digital metasurface unveiled by plasmonic Fano resonance
    Nanophotonics (IF 7.491) Pub Date : 2020-11-11
    Jie Ou; Xiao-Qing Luo; You-Lin Luo; Wei-Hua Zhu; Zhi-Yong Chen; Wu-Ming Liu; Xin-Lin Wang

    Plasmonic Fano resonance (FR) that contributes to multitudinous potential applications in subwavelength nanostructures can facilitate the realization of tunable wavelength selectivity for controlling light–matter interactions in metasurfaces. However, the plasmonic FR can be generated in metasurfaces with simple or complex geometries, and few of them can support flexible amplitude modulation and multiwavelength

    更新日期:2020-11-13
  • Surface plasmon polariton pulse shaping via two-dimensional Bragg grating pairs
    Nanophotonics (IF 7.491) Pub Date : 2020-11-09
    Kevin T. Crampton; Alan G. Joly; Patrick Z. El-Khoury

    We demonstrate control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver. The arrays provide wave vector matching to allow the conversion of free-space photons into counter-propagating SPPs. SPPs launched from multiple arrays interfere at well-defined spatial positions, and the interference fringes form an all-SPP periodic nano-optical

    更新日期:2020-11-12
  • Ligand-induced chirality and optical activity in semiconductor nanocrystals: theory and applications
    Nanophotonics (IF 7.491) Pub Date : 2020-11-10
    Vera Kuznetsova; Yulia Gromova; Marina Martinez-Carmona; Finn Purcell-Milton; Elena Ushakova; Sergei Cherevkov; Vladimir Maslov; Yurii K. Gun’ko

    Chirality is one of the most fascinating occurrences in the natural world and plays a crucial role in chemistry, biochemistry, pharmacology, and medicine. Chirality has also been envisaged to play an important role in nanotechnology and particularly in nanophotonics, therefore, chiral and chiroptical active nanoparticles (NPs) have attracted a lot of interest over recent years. Optical activity can

    更新日期:2020-11-12
  • Passive photonic diodes based on natural van der Waals heterostructures
    Nanophotonics (IF 7.491) Pub Date : 2020-11-09
    Jie Li; Lin Du; Jing Huang; Yuan He; Jun Yi; Lili Miao; Chujun Zhao; Shuangchun Wen

    Van der Waals heterostructures are composed of stacked atomically thin two-dimensional (2D) crystals to provide unprecedented functionalities and novel physics. Franckeite, a naturally occurring van der Waals heterostructure consisting of superimposed SnS2-like and PbS-like layers alternately, shows intriguing potential in versatile optoelectronic applications. Here, we have prepared the few-layer

    更新日期:2020-11-09
  • Valley depolarization in downconversion and upconversion emission of monolayer WS2 at room temperature
    Nanophotonics (IF 7.491) Pub Date : 2020-10-16
    Han Li; Yating Ma; Yizhen Sui; Yuxiang Tang; Ke Wei; Xiang’ai Cheng; Tian Jiang

    Benefiting from strong photon–exciton and phonon–exciton interactions in atomic thickness, transition metal dichalcogenides (TMDCs) are viewed as one promising platform for exploring elementary excitonic photoluminescence (PL) and intrinsic spin–valley properties at the monolayer limit. Despite well-studied Stokes downconversion (DC) PL, the anti-Stokes upconversion (UC) PL has been recently reported

    更新日期:2020-11-06
  • A large field-of-view metasurface for complex-amplitude hologram breaking numerical aperture limitation
    Nanophotonics (IF 7.491) Pub Date : 2020-10-16
    Yongheng Mu; Mengyao Zheng; Jiaran Qi; Hongmei Li; Jinghui Qiu

    Owing to the potential to manipulate simultaneously amplitude and phase of electromagnetic wave, complex-amplitude holographic metasurfaces (CAHMs) can achieve improved image-reconstruction quality compared with amplitude-only and phase-only ones. However, prevailing design methods based on Huygens–Fresnel theory for CAHMs, e.g., Rayleigh–Sommerfeld diffraction theory (RSDT), restrict acquisition of

    更新日期:2020-11-06
  • Scaling capacity of fiber-optic transmission systems via silicon photonics
    Nanophotonics (IF 7.491) Pub Date : 2020-10-22
    Wei Shi; Ye Tian; Antoine Gervais

    The tremendous growth of data traffic has spurred a rapid evolution of optical communications for a higher data transmission capacity. Next-generation fiber-optic communication systems will require dramatically increased complexity that cannot be obtained using discrete components. In this context, silicon photonics is quickly maturing. Capable of manipulating electrons and photons on the same platform

    更新日期:2020-11-06
  • Dimensional confinement and waveguide effect of Dyakonov surface waves in twisted confined media
    Nanophotonics (IF 7.491) Pub Date : 2020-10-26
    Dmitry A. Chermoshentsev; Evgeny V. Anikin; Sergey A. Dyakov; Nikolay A. Gippius

    We theoretically study Dyakonov surface waveguide modes that propagate along the planar strip interfacial waveguide between two uniaxial dielectrics. We demonstrate that owing to the one-dimensional electromagnetic confinement, Dyakonov surface waveguide modes can propagate in the directions that are forbidden for the classical Dyakonov surface waves at the infinite interface. We show that this situation

    更新日期:2020-11-06
  • Hydrophobic multiscale cavities for high-performance and self-cleaning surface-enhanced Raman spectroscopy (SERS) sensing
    Nanophotonics (IF 7.491) Pub Date : 2020-10-26
    Xiaofei Zhao; Chundong Liu; Jing Yu; Zhen Li; Lu Liu; Chonghui Li; Shicai Xu; Weifeng Li; Baoyuan Man; Chao Zhang

    Cavity array, with excellent optical capture capability, has received increasing attention for the surface-enhanced Raman spectroscopy (SERS)-active substrates. Here, we proposed molybdenum disulfide (MoS2) nanocavities growing on pyramid Si (PSi) composed of in situ reduced Au nanoparticles (AuNPs), which can form the multiscale cavities (MSCs), and is facile for the couple of the plasmon. We demonstrated

    更新日期:2020-11-06
  • High refractive index and extreme biaxial optical anisotropy of rhenium diselenide for applications in all-dielectric nanophotonics
    Nanophotonics (IF 7.491) Pub Date : 2020-10-28
    Anton A. Shubnic; Roman G. Polozkov; Ivan A. Shelykh; Ivan V. Iorsh

    We establish a simple quantitative criterium for the search of new dielectric materials with high values of refractive index in the visible range. It is demonstrated, that for light frequencies below the bandgap, the latter is determined by the dimensionless parameter η calculated as the ratio of the sum of the widths of conduction and valence bands and the bandgap. Small values of this parameter,

    更新日期:2020-11-06
  • Polarization-selected nonlinearity transition in gold dolmens coupled to an epsilon-near-zero material
    Nanophotonics (IF 7.491) Pub Date : 2020-10-29
    Xinxiang Niu; Xiaoyong Hu; Quan Sun; Cuicui Lu; Yuanmu Yang; Hong Yang; Qihuang Gong

    Nonlinear optical materials are cornerstones of modern optics including ultrafast lasers, optical computing, and harmonic generation. The nonlinear coefficients of optical materials suffer from limitations in strength and bandwidth. Also, the nonlinear performance is typically monotonous without polarization selectivity, and to date, no natural material has been found to possess nonlinear coefficients

    更新日期:2020-11-06
  • Wide-gap photoluminescence control of quantum dots through atomic interdiffusion and bandgap renormalization
    Nanophotonics (IF 7.491) Pub Date : 2020-10-29
    Kyoung-Duck Park; Minh Tan Man; Deok-Yong Cho; Hong Seok Lee

    Bandgap and photoluminescence (PL) energy control of epitaxially grown II–VI quantum dots (QDs) are highly desirable for applications in optoelectronic devices, yet little work has been reported. Here, we present a wide tunability of PL emission for CdTe/ZnTe QDs through an impurity-free vacancy disordering method. To induce compressive stress at the dielectric layer/ZnTe interface, a SiO2 film is

    更新日期:2020-11-06
  • Polarization-sensitive photodetectors based on three-dimensional molybdenum disulfide (MoS2) field-effect transistors
    Nanophotonics (IF 7.491) Pub Date : 2020-10-29
    Tao Deng; Shasha Li; Yuning Li; Yang Zhang; Jingye Sun; Weijie Yin; Weidong Wu; Mingqiang Zhu; Yingxin Wang; Zewen Liu

    The molybdenum disulfide (MoS2)-based photodetectors are facing two challenges: the insensitivity to polarized light and the low photoresponsivity. Herein, three-dimensional (3D) field-effect transistors (FETs) based on monolayer MoS2 were fabricated by applying a self–rolled-up technique. The unique microtubular structure makes 3D MoS2 FETs become polarization sensitive. Moreover, the microtubular

    更新日期:2020-11-06
  • Large-scale monolayer molybdenum disulfide (MoS2) for mid-infrared photonics
    Nanophotonics (IF 7.491) Pub Date : 2020-10-29
    Han Pan; Hongwei Chu; Zhongben Pan; Shengzhi Zhao; Ming Yang; Jianwei Chai; Shijie Wang; Dongzhi Chi; Dechun Li

    Mid-infrared (MIR) photonics has attracted tremendous interest because of its broad applications at atmospheric windows. In this work, we report high-performance MIR photonics based on large-scale and good-quality monolayer molybdenum disulfide (MoS2). The open-aperture Z-scan measurement on the nonlinear saturable absorption features shows that the as-grown monolayer MoS2 possesses a modulation depth

    更新日期:2020-11-06
  • Dynamically controlling local field enhancement at an epsilon-near-zero/dielectric interface via nonlinearities of an epsilon-near-zero medium
    Nanophotonics (IF 7.491) Pub Date : 2020-11-02
    Alexander Baev; Paras N. Prasad; M. Zahirul Alam; Robert W. Boyd

    For p-polarized light incident on an interface between an ordinary dielectric and an epsilon-near-zero (ENZ) material, an enhancement of the component of the electric field, normal to this interface, has been shown to occur. This local field enhancement holds great promise for amplifying nonlinear optical processes and for other applications requiring ultrastrong local fields in epsilon-near-zero based

    更新日期:2020-11-06
  • Recent advances in fluorescence probes based on carbon dots for sensing and speciation of heavy metals
    Nanophotonics (IF 7.491) Pub Date : 2020-11-06
    Pingjing Li; Sam F. Y. Li

    Heavy metal (HM) pollution is a major global concern. Carbon dots (CDs) have demonstrated unique properties as sensing platforms for HMs detection. This review summarizes the progress made in recent years in fluorescence methods to determine HMs and their species using CDs. First, the strategies to synthesize and purify CDs are reviewed. The photoluminescence principles of CDs and their sensing mechanisms

    更新日期:2020-11-06
  • High-Q nanophotonics: sculpting wavefronts with slow light
    Nanophotonics (IF 7.491) Pub Date : 2020-10-30
    David Barton; Jack Hu; Jefferson Dixon; Elissa Klopfer; Sahil Dagli; Mark Lawrence; Jennifer Dionne

    Densely interconnected, nonlinear, and reconfigurable optical networks represent a route to high-performance optical computing, communications, and sensing technologies. Dielectric nanoantennas are promising building blocks for such architectures since they can precisely control optical diffraction. However, they are traditionally limited in their nonlinear and reconfigurable responses owing to their

    更新日期:2020-11-02
  • Machine learning–assisted global optimization of photonic devices
    Nanophotonics (IF 7.491) Pub Date : 2020-10-28
    Zhaxylyk A. Kudyshev; Alexander V. Kildishev; Vladimir M. Shalaev; Alexandra Boltasseva

    Over the past decade, artificially engineered optical materials and nanostructured thin films have revolutionized the area of photonics by employing novel concepts of metamaterials and metasurfaces where spatially varying structures yield tailorable “by design” effective electromagnetic properties. The current state-of-the-art approach to designing and optimizing such structures relies heavily on simplistic

    更新日期:2020-10-30
  • NIST-certified secure key generation via deep learning of physical unclonable functions in silica aerogels
    Nanophotonics (IF 7.491) Pub Date : 2020-10-28
    Andrea Fratalocchi; Adam Fleming; Claudio Conti; Andrea Di Falco

    Physical unclonable functions (PUFs) are complex physical objects that aim at overcoming the vulnerabilities of traditional cryptographic keys, promising a robust class of security primitives for different applications. Optical PUFs present advantages over traditional electronic realizations, namely, a stronger unclonability, but suffer from problems of reliability and weak unpredictability of the

    更新日期:2020-10-30
  • Temporally modulated energy shuffling in highly interconnected nanosystems
    Nanophotonics (IF 7.491) Pub Date : 2020-10-29
    Brandon Mitchell; Hayley Austin; Dolf Timmerman; Volkmar Dierolf; Yasufumi Fujiwara

    Advances in lighting and quantum computing will require new degrees of control over the emission of photons, where localized defects and the quantum confinement of carriers can be utilized. In this contribution, recent developments in the controlled redistribution of energy in rare earth (RE)–doped nanosystems, such as quantum dots or within bulk insulating and semiconducting hosts, will be reviewed

    更新日期:2020-10-30
  • Propagation stability in optical fibers: role of path memory and angular momentum
    Nanophotonics (IF 7.491) Pub Date : 2020-10-21
    Zelin Ma; Siddharth Ramachandran

    With growing interest in the spatial dimension of light, multimode fibers, which support eigenmodes with unique spatial and polarization attributes, have experienced resurgent attention. Exploiting this spatial diversity often requires robust modes during propagation, which, in realistic fibers, experience perturbations such as bends and path redirections. By isolating the effects of different perturbations

    更新日期:2020-10-28
  • Tunable optical metasurfaces enabled by multiple modulation mechanisms
    Nanophotonics (IF 7.491) Pub Date : 2020-10-26
    Yuanhang Che; Xiaoting Wang; Qinghai Song; Yabei Zhu; Shumin Xiao

    With their ultrathin characteristics as well as the powerful and flexible capabilities of wavefront modulation, optical metasurfaces have brought a new understanding of the interaction between light and matter and provided a powerful way to constrain and manage light. However, the unmodifiable structures and the immutable materials used in the construction lead to the unsatisfactory applications in

    更新日期:2020-10-28
  • Plasmonic control of drug release efficiency in agarose gel loaded with gold nanoparticle assemblies
    Nanophotonics (IF 7.491) Pub Date : 2020-10-16
    Luca Moretti; Andrea Mazzanti; Arianna Rossetti; Andrea Schirato; Laura Polito; Fabio Pizzetti; Alessandro Sacchetti; Giulio Cerullo; Giuseppe Della Valle; Filippo Rossi; Margherita Maiuri

    Plasmonic nanoparticles (NPs) are exploited to concentrate light, provide local heating and enhance drug release when coupled to smart polymers. However, the role of NP assembling in these processes is poorly investigated, although their superior performance as nanoheaters has been theoretically predicted since a decade. Here we report on a compound hydrogel (agarose and carbomer 974P) loaded with

    更新日期:2020-10-19
  • Macroscopic QED for quantum nanophotonics: emitter-centered modes as a minimal basis for multiemitter problems
    Nanophotonics (IF 7.491) Pub Date : 2020-10-16
    Johannes Feist; Antonio I. Fernández-Domínguez; Francisco J. García-Vidal

    We present an overview of the framework of macroscopic quantum electrodynamics from a quantum nanophotonics perspective. Particularly, we focus our attention on three aspects of the theory that are crucial for the description of quantum optical phenomena in nanophotonic structures. First, we review the light–matter interaction Hamiltonian itself, with special emphasis on its gauge independence and

    更新日期:2020-10-19
  • Advances in ultrafast laser structuring of materials at the nanoscale
    Nanophotonics (IF 7.491) Pub Date : 2020-10-14
    Razvan Stoian; Jean-Philippe Colombier

    Laser processing implies the generation of a material function defined by the shape and the size of the induced structures, being a collective effect of topography, morphology, and structural arrangement. A fundamental dimensional limit in laser processing is set by optical diffraction. Many material functions are yet defined at the micron scale, and laser microprocessing has become a mainstream development

    更新日期:2020-10-16
  • Hopping of single nanoparticles trapped in a plasmonic double-well potential
    Nanophotonics (IF 7.491) Pub Date : 2020-10-14
    Seung Ju Yoon; Da In Song; Jungmin Lee; Myung-Ki Kim; Yong-Hee Lee; Chang-Kyu Kim

    Thermally induced particle hopping in the nanoscale double-well potential is fundamental in material design and device operation. After the proposal of the basic hopping theory, several experimental studies, including some using the optical trapping method, have validated the theoretical approach over various friction ranges of the surrounding medium. However, only external parameters, such as viscosity

    更新日期:2020-10-16
  • Hexagonal transverse-coupled-cavity VCSEL redefining the high-speed lasers
    Nanophotonics (IF 7.491) Pub Date : 2020-10-15
    Elham Heidari; Hamed Dalir; Moustafa Ahmed; Volker J. Sorger; Ray T. Chen

    Vertical-cavity surface-emitting lasers (VCSELs) have emerged as a vital approach for realizing energy-efficient and high-speed optical interconnects in the data centers and supercomputers. Indeed, VCSELs are the most suitable mass production lasers in terms of cost-effectiveness and reliability. However, there are still key challenges that prevent achieving modulation speeds beyond 30s GHz. Here,

    更新日期:2020-10-16
  • Soliton dynamics of ring quantum cascade lasers with injected signal
    Nanophotonics (IF 7.491) Pub Date : 2020-10-15
    Franco Prati; Massimo Brambilla; Marco Piccardo; Lorenzo Luigi Columbo; Carlo Silvestri; Mariangela Gioannini; Alessandra Gatti; Luigi A. Lugiato; Federico Capasso

    Nonlinear interactions in many physical systems lead to symmetry breaking phenomena in which an initial spatially homogeneous stationary solution becomes modulated. Modulation instabilities have been widely studied since the 1960s in different branches of nonlinear physics. In optics, they may result in the formation of optical solitons, localized structures that maintain their shape as they propagate

    更新日期:2020-10-16
  • Two-dimensional spectroscopy on a THz quantum cascade structure
    Nanophotonics (IF 7.491) Pub Date : 2020-10-15
    Sergej Markmann; Martin Franckié; Shovon Pal; David Stark; Mattias Beck; Manfred Fiebig; Giacomo Scalari; Jérôme Faist

    Understanding and controlling the nonlinear optical properties and coherent quantum evolution of complex multilevel systems out of equilibrium is essential for the new semiconductor device generation. In this work, we investigate the nonlinear system properties of an unbiased quantum cascade structure by performing two-dimensional THz spectroscopy. We study the time-resolved coherent quantum evolution

    更新日期:2020-10-16
  • Properties of nanocrystalline silicon probed by optomechanics
    Nanophotonics (IF 7.491) Pub Date : 2020-10-15
    Daniel Navarro-Urrios; Martín F. Colombano; Jeremie Maire; Emigdio Chávez-Ángel; Guillermo Arregui; Néstor E. Capuj; Arnaud Devos; Amadeu Griol; Laurent Bellieres; Alejandro Martínez; Kestutis Grigoras; Teija Häkkinen; Jaakko Saarilahti; Tapani Makkonen; Clivia M. Sotomayor-Torres; Jouni Ahopelto

    Nanocrystalline materials exhibit properties that can differ substantially from those of their single crystal counterparts. As such, they provide ways to enhance and optimize their functionality for devices and applications. Here, we report on the optical, mechanical and thermal properties of nanocrystalline silicon probed by means of optomechanical nanobeams to extract information of the dynamics

    更新日期:2020-10-16
  • High-efficiency metadevices for bifunctional generations of vectorial optical fields
    Nanophotonics (IF 7.491) Pub Date : 2020-10-09
    Dongyi Wang; Tong Liu; Yuejiao Zhou; Xiaoying Zheng; Shulin Sun; Qiong He; Lei Zhou

    Vectorial optical fields (VOFs) exhibiting tailored wave fronts and spatially inhomogeneous polarization distributions are particularly useful in photonic applications. However, devices to generate them, made by natural materials or recently proposed metasurfaces, are either bulky in size or less efficient, or exhibit restricted performances. Here, we propose a general approach to design metadevices

    更新日期:2020-10-13
  • Near-field resonant photon sorting applied: dual-band metasurface quantum well infrared photodetectors for gas sensing
    Nanophotonics (IF 7.491) Pub Date : 2020-10-08
    Mel F. Hainey; Takaaki Mano; Takeshi Kasaya; Tetsuyuki Ochiai; Hirotaka Osato; Kazuhiro Watanabe; Yoshimasa Sugimoto; Takuya Kawazu; Yukinaga Arai; Akitsu Shigetou; Hideki T. Miyazaki

    Two photodetectors for measuring transmission and two bulky, separated narrowband filters for picking a target gas absorption line and a non-absorbing reference from broadband emission are typically required for dual-band non-dispersive infrared (NDIR) gas sensing. Metal-dielectric-metal (MDM) metasurface plasmon cavities, precisely controllable narrowband absorbers, suggest a next-generation, nanophotonic

    更新日期:2020-10-11
  • Photoinduced electron transfer processes of single-wall carbon nanotube (SWCNT)–based hybrids
    Nanophotonics (IF 7.491) Pub Date : 2020-10-07
    Lili Du; Wenjuan Xiong; Wai Kin Chan; David Lee Phillips

    In this review, noncovalent functionalization of single-wall carbon nanotubes (SWCNTs) is briefly reviewed. The functional materials summarized here include metalloporphyrin derivatives, biomolecules and conjugated polymers. Notably, time-resolved spectroscopic techniques such as time-resolved fluorescence and transient absorption were employed to directly investigate the electron transfer and recombination

    更新日期:2020-10-08
  • Waveguide combiners for mixed reality headsets: a nanophotonics design perspective
    Nanophotonics (IF 7.491) Pub Date : 2020-10-07
    Bernard C. Kress; Ishan Chatterjee

    This paper is a review and analysis of the various implementation architectures of diffractive waveguide combiners for augmented reality (AR), mixed reality (MR) headsets, and smart glasses. Extended reality (XR) is another acronym frequently used to refer to all variants across the MR spectrum. Such devices have the potential to revolutionize how we work, communicate, travel, learn, teach, shop, and

    更新日期:2020-10-08
  • Strong spin squeezing induced by weak squeezing of light inside a cavity
    Nanophotonics (IF 7.491) Pub Date : 2020-10-08
    Wei Qin; Ye-Hong Chen; Xin Wang; Adam Miranowicz; Franco Nori

    We propose a simple method for generating spin squeezing of atomic ensembles in a Floquet cavity subject to a weak, detuned two-photon driving. We demonstrate that the weak squeezing of light inside the cavity can, counterintuitively, induce strong spin squeezing. This is achieved by exploiting the anti-Stokes scattering process of a photon pair interacting with an atom. Specifically, one photon of

    更新日期:2020-10-08
  • Topological photonics: Where do we go from here?
    Nanophotonics (IF 7.491) Pub Date : 2020-10-07
    Mordechai Segev; Miguel A. Bandres

    Topological photonics is currently one of the most active research areas in optics and also one of the spearheads of research in topological physics at large. We are now more than a decade after it started. Topological photonics has already proved itself as an excellent platform for experimenting with concepts imported from condensed matter physics. But more importantly, topological photonics has also

    更新日期:2020-10-07
  • Toward new frontiers for terahertz quantum cascade laser frequency combs
    Nanophotonics (IF 7.491) Pub Date : 2020-10-07
    Miriam S. Vitiello; Luigi Consolino; Massimo Inguscio; Paolo De Natale

    Broadband, quantum-engineered, quantum cascade lasers (QCLs) are the most powerful chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the terahertz (THz) frequency range. The inherently short intersubband upper state lifetime spontaneously allows mode proliferation, with large quantum efficiencies, as a result of the intracavity four-wave mixing. QCLs can be easily integrated

    更新日期:2020-10-07
  • Hyperbolic dispersion metasurfaces for molecular biosensing
    Nanophotonics (IF 7.491) Pub Date : 2020-10-07
    Giovanna Palermo; Kandammathe Valiyaveedu Sreekanth; Nicolò Maccaferri; Giuseppe Emanuele Lio; Giuseppe Nicoletta; Francesco De Angelis; Michael Hinczewski; Giuseppe Strangi

    Sensor technology has become increasingly crucial in medical research and clinical diagnostics to directly detect small numbers of low-molecular-weight biomolecules relevant for lethal diseases. In recent years, various technologies have been developed, a number of them becoming core label-free technologies for detection of cancer biomarkers and viruses. However, to radically improve early disease

    更新日期:2020-10-07
  • On-chip broadband nonreciprocal light storage
    Nanophotonics (IF 7.491) Pub Date : 2020-10-02
    Moritz Merklein; Birgit Stiller; Khu Vu; Pan Ma; Stephen J. Madden; Benjamin J. Eggleton

    Breaking the symmetry between forward- and backward-propagating optical modes is of fundamental scientific interest and enables crucial functionalities, such as isolators, circulators, and duplex communication systems. Although there has been progress in achieving optical isolation on-chip, integrated broadband nonreciprocal signal processing functionalities that enable transmitting and receiving via

    更新日期:2020-10-05
  • Non-Hermitian and topological photonics: optics at an exceptional point
    Nanophotonics (IF 7.491) Pub Date : 2020-10-05
    Midya Parto; Yuzhou G. N. Liu; Babak Bahari; Mercedeh Khajavikhan; Demetrios N. Christodoulides

    In the past few years, concepts from non-Hermitian (NH) physics, originally developed within the context of quantum field theories, have been successfully deployed over a wide range of physical settings where wave dynamics are known to play a key role. In optics, a special class of NH Hamiltonians – which respects parity-time symmetry – has been intensely pursued along several fronts. What makes this

    更新日期:2020-10-05
  • Reflectionless excitation of arbitrary photonic structures: a general theory
    Nanophotonics (IF 7.491) Pub Date : 2020-10-01
    A. Douglas Stone; William R. Sweeney; Chia Wei Hsu; Kabish Wisal; Zeyu Wang

    We outline and interpret a recently developed theory of impedance matching or reflectionless excitation of arbitrary finite photonic structures in any dimension. The theory includes both the case of guided wave and free-space excitation. It describes the necessary and sufficient conditions for perfectly reflectionless excitation to be possible and specifies how many physical parameters must be tuned

    更新日期:2020-10-02
  • Metamaterials with high degrees of freedom: space, time, and more
    Nanophotonics (IF 7.491) Pub Date : 2020-10-01
    Nader Engheta

    In this brief opinionated article, I present a personal perspective on metamterials with high degrees of freedom and dimensionality and discuss their potential roles in enriching light–matter interaction in photonics and related fields.

    更新日期:2020-10-02
  • Nanolaser arrays: toward application-driven dense integration
    Nanophotonics (IF 7.491) Pub Date : 2020-09-30
    Suruj S. Deka; Sizhu Jiang; Si Hui Pan; Yeshaiahu Fainman

    The past two decades have seen widespread efforts being directed toward the development of nanoscale lasers. A plethora of studies on single such emitters have helped demonstrate their advantageous characteristics such as ultrasmall footprints, low power consumption, and room-temperature operation. Leveraging knowledge about single nanolasers, the next phase of nanolaser technology will be geared toward

    更新日期:2020-09-30
  • A fiber optic–nanophotonic approach to the detection of antibodies and viral particles of COVID-19
    Nanophotonics (IF 7.491) Pub Date : 2020-09-30
    Navid Rajil; Alexei Sokolov; Zhenhuan Yi; Garry Adams; Girish Agarwal; Vsevolod Belousov; Robert Brick; Kimberly Chapin; Jeffrey Cirillo; Volker Deckert; Sahar Delfan; Shahriar Esmaeili; Alma Fernández-González; Edward Fry; Zehua Han; Philip Hemmer; George Kattawar; Moochan Kim; Ming-Che Lee; Chao-Yang Lu; Jon Mogford; Benjamin Neuman; Jian-Wei Pan; Tao Peng; Vincent Poor; Steven Scully; Yanhua Shih;

    Dr. Deborah Birx, the White House Coronavirus Task Force coordinator, told NBC News on “Meet the Press” that “[T]he U.S. needs a ‘breakthrough’ in coronavirus testing to help screen Americans and get a more accurate picture of the virus’ spread.” We have been involved with biopathogen detection since the 2001 anthrax attacks and were the first to detect anthrax in real-time. A variation on the laser

    更新日期:2020-09-30
  • A simple Mie-resonator based meta-array with diverse deflection scenarios enabling multifunctional operation at near-infrared
    Nanophotonics (IF 7.491) Pub Date : 2020-09-29
    Majid Aalizadeh; Andriy E. Serebryannikov; Ekmel Ozbay; Guy A. E. Vandenbosch

    Deflection, a basic functionality of wavefront manipulation is usually associated with the phase-gradient metasurfaces and the classical blazed gratings. We numerically and experimentally demonstrate an unusually wideband and simultaneously wide-angle deflection achieved at near-infrared in reflection mode for a periodic (nongradient), ultrathin meta-array comprising only one silicon nanorod (Mie resonator)

    更新日期:2020-09-29
  • High-performance integrated graphene electro-optic modulator at cryogenic temperature
    Nanophotonics (IF 7.491) Pub Date : 2020-09-25
    Brian S. Lee; Bumho Kim; Alexandre P. Freitas; Aseema Mohanty; Yibo Zhu; Gaurang R. Bhatt; James Hone; Michal Lipson

    High-performance integrated electro-optic modulators operating at low temperature are critical for optical interconnects in cryogenic applications. Existing integrated modulators, however, suffer from reduced modulation efficiency or bandwidth at low temperatures because they rely on tuning mechanisms that degrade with decreasing temperature. Graphene modulators are a promising alternative because

    更新日期:2020-09-28
  • Topological phases in ring resonators: recent progress and future prospects
    Nanophotonics (IF 7.491) Pub Date : 2020-09-25
    Daniel Leykam; Luqi Yuan

    Topological photonics has emerged as a novel paradigm for the design of electromagnetic systems from microwaves to nanophotonics. Studies to date have largely focused on the demonstration of fundamental concepts, such as nonreciprocity and waveguiding protected against fabrication disorder. Moving forward, there is a pressing need to identify applications where topological designs can lead to useful

    更新日期:2020-09-28
  • Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity
    Nanophotonics (IF 7.491) Pub Date : 2020-09-28
    Sarath Raman Nair; Lachlan J. Rogers; Xavier Vidal; Reece P. Roberts; Hiroshi Abe; Takeshi Ohshima; Takashi Yatsui; Andrew D. Greentree; Jan Jeske; Thomas Volz

    Laser threshold magnetometry using the negatively charged nitrogen-vacancy (NV−) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV− centres. We observe amplification of the

    更新日期:2020-09-28
  • A metasurface-based diamond frequency converter using plasmonic nanogap resonators
    Nanophotonics (IF 7.491) Pub Date : 2020-09-28
    Qixin Shen; Amirhassan Shams-Ansari; Andrew M. Boyce; Nathaniel C. Wilson; Tao Cai; Marko Loncar; Maiken H. Mikkelsen

    Diamond has attracted great interest as an appealing material for various applications ranging from classical to quantum optics. To date, Raman lasers, single photon sources, quantum sensing and quantum communication have been demonstrated with integrated diamond devices. However, studies of the nonlinear optical properties of diamond have been limited, especially at the nanoscale. Here, a metasurface

    更新日期:2020-09-28
  • Homogeneous quantum cascade lasers operating as terahertz frequency combs over their entire operational regime
    Nanophotonics (IF 7.491) Pub Date : 2020-09-28
    Alessandra Di Gaspare; Leonardo Viti; Harvey E. Beere; David D. Ritchie; Miriam S. Vitiello

    We report a homogeneous quantum cascade laser (QCL) emitting at terahertz (THz) frequencies, with a total spectral emission of about 0.6 THz, centered around 3.3 THz, a current density dynamic range Jdr = 1.53, and a continuous wave output power of 7 mW. The analysis of the intermode beatnote unveils that the devised laser operates as an optical frequency comb (FC) synthesizer over the whole laser

    更新日期:2020-09-28
Contents have been reproduced by permission of the publishers.
导出
全部期刊列表>>
施普林格,自然编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
林亮
南方科技大学
朱守非
华东师范大学
胡少伟
有机所林亮
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
上海纽约大学
浙江大学
廖矿标
天合科研
x-mol收录
试剂库存
down
wechat
bug