Laser & Photonics Reviews最新文献

{"title":"High-Resolution Non-Line-of-Sight Tracking By Comb-Calibrated FMCW LiDAR","authors":"Ruilin Ye, Xin Huang, Jialin Li, Wenwen Li, Feihu Xu","doi":"10.1002/lpor.202401250","DOIUrl":"https://doi.org/10.1002/lpor.202401250","url":null,"abstract":"Non-line-of-sight (NLOS) tracking has the ability to detect and locate moving objects which are hidden from the direct line of sight. It has a number of potential applications in autonomous driving, security and search-and-rescue scenarios. The current approaches for NLOS tracking mostly rely on time-of-flight (ToF) LiDAR, mmWave radar or RGB camera. However, they may either have a limited resolution or need accumulation to detect the position and velocity. Here a real-time comb-calibrated frequency-modulated-continuous-wave (FMCW) LiDAR system is proposed and demonstrated for high-resolution NLOS tracking. A 3D positioning (and velocity) accuracy of 2 mm (and 2 mm s⁻¹) and the capability to realize real-time multi-object tracking are demonstrated in experiment. Importantly, the FMCW-LiDAR approach can obtain the position and velocity of multiple objects in a <i>snapshot</i>, thus resolving the problems of measurement origin uncertainty, false alarm, and detection overlap in multi-target tracking. The proposed approach shows significant potential for practical applications in NLOS detection and sensing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"16 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142887232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Far-Field and Near-Field Manipulation via Multipole Coupling Phenomenon in Van der Waals Metasurfaces","authors":"Alexei V. Prokhorov, Sergey M. Novikov, Mikhail Yu. Gubin, Roman V. Kirtaev, Alexander V. Shesterikov, Dmitriy V. Grudinin, Mikhail K. Tatmyshevskiy, Dmitry I. Yakubovsky, Elena S. Zhukova, Aleksey V. Arsenin, Valentyn S. Volkov","doi":"10.1002/lpor.202401666","DOIUrl":"https://doi.org/10.1002/lpor.202401666","url":null,"abstract":"The advent of a new era of flat optics is due to the optical metasurfaces, whose large number of degrees of freedom allowed one to fabricate various optical elements on a single technological platform. The use of van der Waals (vdW) layered materials, which have a remarkable combination of a high refractive index, record optical anisotropy and bright exciton resonances, can lead to operating regimes of metasurfaces that are unattainable for their dielectric counterparts. In this work, the degree of freedom related to the optical anisotropy is used for control of the balance and competition of modes of vdW resonators, leading to the observation of both the well-known hybrid anapole effect and recently predicted octupole quasi-trapped mode (OQTM) regime in the same metasurface. Using far-field and near-field analysis of the metasurface composed of &lt;span data-altimg=\"/cms/asset/79762ae9-ab23-4cf4-87f7-d31ef32d9dd1/lpor202401666-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"1\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/lpor202401666-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-msub data-semantic-children=\"0,1\" data-semantic- data-semantic-role=\"unknown\" data-semantic-speech=\"upper M o upper S 2\" data-semantic-type=\"subscript\"&gt;&lt;mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-script style=\"vertical-align: -0.15em;\"&gt;&lt;mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"2\" data-semantic-role=\"integer\" data-semantic-type=\"number\" size=\"s\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mn&gt;&lt;/mjx-script&gt;&lt;/mjx-msub&gt;&lt;/mjx-semantics&gt;&lt;/mjx-math&gt;&lt;mjx-assistive-mml display=\"inline\" unselectable=\"on\"&gt;&lt;math altimg=\"urn:x-wiley:18638880:media:lpor202401666:lpor202401666-math-0001\" display=\"inline\" location=\"graphic/lpor202401666-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;semantics&gt;&lt;msub data-semantic-=\"\" data-semantic-children=\"0,1\" data-semantic-role=\"unknown\" data-semantic-speech=\"upper M o upper S 2\" data-semantic-type=\"subscript\"&gt;&lt;mi data-semantic-=\"\" data-semantic-font=\"normal\" data-semantic-parent=\"2\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\"&gt;MoS&lt;/mi&gt;&lt;mn data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic-parent=\"2\" data-semantic-role=\"integer\" data-semantic-type=\"number\"&gt;2&lt;/mn&gt;&lt;/msub&gt;${rm MoS}_2$&lt;/annotation&gt;&lt;/semantics&gt;&lt;/math&gt;&lt;/mjx-assistive-mml&gt;&lt;/mjx-container&gt; disks, both the common and significantly different features of these two effects are demonstrated and it is found that the remarkable combination of narrow spectral features and strong energy localization makes OQTM-supported vdW metasurfaces a much more attractive alternative for creating flat nanophoton","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"34 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142887231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional Metalens for Trapping and Characterizing Single Atoms","authors":"Guang‐Jie Chen, Dong Zhao, Zhu‐Bo Wang, Ziqin Li, Ji‐Zhe Zhang, Liang Chen, Yan‐Lei Zhang, Xin‐Biao Xu, Ai‐Ping Liu, Chun‐Hua Dong, Guang‐Can Guo, Kun Huang, Chang‐Ling Zou","doi":"10.1002/lpor.202401595","DOIUrl":"https://doi.org/10.1002/lpor.202401595","url":null,"abstract":"Precise control and manipulation of neutral atoms are essential for quantum technologies but largely dependent on conventional bulky optical setups. Here, a multifunctional metalens that integrates an achromatic lens with large numerical aperture is demonstrated, a quarter‐wave plate, and a polarizer for trapping and characterizing single Rubidium atoms. The metalens simultaneously focuses a trapping beam at 852 nm and collects single‐photon fluorescence at 780 nm. A strong dependence of the trapping lifetime is observed on an external bias magnetic field, suggests a complex interplay between the circularly polarized trapping light and the atom's internal states. This work showcases the potential of metasurfaces in realizing compact and integrated quantum systems based on cold atoms, opening up new possibilities for studying quantum control and manipulation at the nanoscale.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"144 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unconventional Photo-Control of Structural Features Using Elliptically Polarized Light","authors":"Srinivas Pagidi, Sujaya Kumar Vishwanath, Dan Luo, Surajit Dhara, Ramesh Manda","doi":"10.1002/lpor.202401085","DOIUrl":"https://doi.org/10.1002/lpor.202401085","url":null,"abstract":"The holographic interference of either same-handed or orthogonal polarized beams is commonly employed in the fabrication of optical elements as it enables the development of an ideal sinusoidal surface modulation by inducing the mass migration of photochromic polymer. However, this approach encounters challenges in producing multiplexed optical elements with a complex surface topography, primarily due to only sinusoidal surface topography which limits control over the feature's shape and size. Here, a versatile approach is demonstrated for fabricating spatially multiplexed optical elements using ellipticity-controlled orthogonally elliptically polarized (OEP) beams that offer distorted square-like and rhombus-like pillars on the azopolymer layer by asymmetric azopolymer migration driven by spatially varying ellipticity and azimuth angle of interference beam. These multiplexed distorted shapes enable selective energy transfer during light diffraction and also induce a &lt;span data-altimg=\"/cms/asset/a2644906-a50d-445e-9b32-cfb416da7cb4/lpor202401085-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"1\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/lpor202401085-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-mrow data-semantic-children=\"0,2\" data-semantic-content=\"1\" data-semantic- data-semantic-role=\"division\" data-semantic-speech=\"pi divided by 8\" data-semantic-type=\"infixop\"&gt;&lt;mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"greekletter\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-mo data-semantic- data-semantic-operator=\"infixop,/\" data-semantic-parent=\"3\" data-semantic-role=\"division\" data-semantic-type=\"operator\" rspace=\"1\" space=\"1\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"3\" data-semantic-role=\"integer\" data-semantic-type=\"number\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mn&gt;&lt;/mjx-mrow&gt;&lt;/mjx-semantics&gt;&lt;/mjx-math&gt;&lt;mjx-assistive-mml display=\"inline\" unselectable=\"on\"&gt;&lt;math altimg=\"urn:x-wiley:18638880:media:lpor202401085:lpor202401085-math-0001\" display=\"inline\" location=\"graphic/lpor202401085-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;semantics&gt;&lt;mrow data-semantic-=\"\" data-semantic-children=\"0,2\" data-semantic-content=\"1\" data-semantic-role=\"division\" data-semantic-speech=\"pi divided by 8\" data-semantic-type=\"infixop\"&gt;&lt;mi data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic-parent=\"3\" data-semantic-role=\"greekletter\" data-semantic-type=\"identifier\"&gt;π&lt;/mi&gt;&lt;mo data-semantic-=\"\" data-semantic-operator=\"infixop,/\" data-semantic-parent=\"3\" data-semantic-role=\"division\" data-semantic-type=\"operator\"&gt;/&lt;/mo&gt;&lt;mn data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-sema","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"41 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"All‐Dielectric Meta‐Microlens‐Array Confocal Fluorescence Microscopy","authors":"Surag Athippillil Suresh, Sunil Vyas, Cheng Hung Chu, Takeshi Yamaguchi, Takuo Tanaka, J. Andrew Yeh, Din Ping Tsai, Yuan Luo","doi":"10.1002/lpor.202401314","DOIUrl":"https://doi.org/10.1002/lpor.202401314","url":null,"abstract":"Acquisition time and optical sectioning capability are critical factors in fluorescence imaging. Confocal microscopy is a vital optical imaging method to inherently observe volumetric tissues with fine optical sectioning capability; however, point‐by‐point scanning is time‐consuming. Metasurfaces, a type of flat optics utilizing nano‐scale structures, provide diverse functionalities and extensive flexibility in controlling light wavefronts. Here, meta‐microlens‐array (meta‐MLA) for multifocal confocal fluorescence microscopy to enhance acquisition speed is introduced, reduce photo‐bleaching, and improve energy efficiency while remaining compatible with existing commercial scanning configurations. Point spread function (PSF) in the meta‐MLA confocal lateral and axial directions has been evaluated. Fast optically sectioned images of various samples, including pollen grains and biological tissue phantoms, are performed. Image quality is further enhanced by the Richardson–Lucy (RL) deconvolution method with total variation (TV). The trade‐off between spatial resolution and acquisition speed is overcome using deep neural network models, comparing performance metrics with a conventional confocal microscope. The combination of meta‐MLA confocal and deep learning with superior image quality and fast acquisition will likely extend the clinical applications of miniaturized optical imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"34 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Strong Red-Emitting Phosphor-in-BASK-Glass through Spark Plasma Sintering: Insights into the Role of Interfacial Reaction on PL Efficiencies","authors":"Manman Zhang, Mengmeng Meng, Lingjun Zhou, Panyi Wang, Yingying Cui, Yangyang Jiang, Muzhi Cai, Jintian Tang, Youjie Hua, Laurent Calvez, Xvsheng Qiao, Xianghua Zhang, Shiqing Xu","doi":"10.1002/lpor.202401501","DOIUrl":"https://doi.org/10.1002/lpor.202401501","url":null,"abstract":"Red-emitting phosphor-in-glass (Red-PiG) color converters are critical for high-power light-emitting diode or laser-driven lighting applications, yet they remain challenging due to the degradation and interfacial reactions of red-emitting phosphors within glass matrixes. This study investigates the efficacy of spark plasma sintering (SPS) in inhibiting these interfacial reactions across different phosphor and glass compositions. CaAlSiN₃:Eu²⁺ and Sr₂Si₅N₈:Eu²⁺ phosphors, along with fluoride and borosilicate glasses, are selected to explore their interfacial behavior during SPS. By optimizing the interfacial morphology, a borosilicate-based PiG with a luminous flux of 248 lm and a luminous efficiency of 173 lm W⁻¹ is achieved, setting new benchmarks for Red-PiG performance. In addition, laser-driven white lighting based on the high-performance Red-PiG has a color rendering index of up to 90. The findings elucidate the mechanisms by which SPS can enhance interfacial stability and optical performance in Red-PiG materials, offering strategic insights for advancing the synthesis of high-quality PiG materials for optoelectronic applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"26 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D Orbital Angular Momentum Multiplexing Holography with Metasurfaces: Encryption and Dynamic Display of 3D Multi-Targets","authors":"Ling-Jun Kong, Furong Zhang, ShiYuan Cheng, Xiangdong Zhang","doi":"10.1002/lpor.202401608","DOIUrl":"https://doi.org/10.1002/lpor.202401608","url":null,"abstract":"After years of development, holography has become an essential tool of modern optics for many applications. Among them, holographic encryption and dynamic display are the two most typical applications. So far, however, only 2D targets or 2D images of 3D targets can be encrypted with holographic technology. The 3D multiplexing holographic technology of 3D multi-targets has not yet been realized and holographic encryption of 3D multi-targets is still a blank. Here, the conception of 3D orbital angular momentum (OAM) multiplexing holography is proposed, and holographic encryption of 3D multi-targets is realized for the first time. This breaks the restriction that only 2D images can be encrypted in traditional holographic encryption. Furthermore, the results also show that the 3D OAM holography can be used in the dynamic display for 3D multi-targets. In the experiment, the metasurface is used for taking its high-resolution advantage in light field manipulation, and verify the feasibility of 3D OAM multiplexing holographic technology, holographic encryption of 3D multi-targets, and holographic dynamic display of 3D targets. The work creates a precedent for the 3D multiplexing holography, encryption, and dynamic display technology of 3D multi-targets, which brings real 3D life closer to humankind.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"92 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"QCL-Based Cryogen-Free THz Optical Wireless Communication Link","authors":"Alessia Sorgi, Marco Meucci, Muhammad A. Umair, Francesco Cappelli, Guido Toci, Paolo De Natale, Leonardo Viti, Andrea C. Ferrari, Miriam S. Vitiello, Luigi Consolino, Jacopo Catani","doi":"10.1002/lpor.202301082","DOIUrl":"https://doi.org/10.1002/lpor.202301082","url":null,"abstract":"The increased demand for high-speed (terabit-per-second) wireless data transmission has driven the shift of the frequency carrier from ubiquitous radio frequency systems toward the 1–5 THz range, triggering a new interest for THz quantum cascade laser (QCL)-based free-space optical (FSO) links. As compared to standard telecom-band FSO links, platforms based on THz frequency sources are inherently robust against Rayleigh scattering. Atmospheric absorption, mainly due to water vapor, limits the achievable link distance range, but at the same time, it shifts channel security on the physical layer. THz QCL-based FSO links are reported with setups requiring cryogenic cooling, seriously limiting their development for mass applications. Here, a cryogen-free, transportable THz FSO communication system is presented relying on a directly modulated 2.83 THz QCL transmitter, hosted in a closed-cycle Stirling cryocooler, and exploiting a room-temperature graphene-based receiver, implementing a binary on-off keying modulation scheme with Manchester encoding. Power-versus-distance measurements and communication tests are performed, and propose a propagation model to extrapolate the performances of the THz link in an optimized configuration. This approach reduces complexity and costs, as compared to the state-of-the-art THz FSO links, and paves the way for the deployment of optical wireless communication systems exploiting the 1–5 THz frequency range.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"5 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid Thin-Film Lithium Niobate Micro-Ring Acousto-Optic Modulator with Low Half-Wave-Voltage-Length Product","authors":"Lei Wan, Jiying Huang, Meixun Wen, Huan Li, Wenfeng Zhou, Zhiqiang Yang, Yuping Chen, Huilong Liu, Siqing Zeng, Dong Liu, Shuixian Yang, Daoxin Dai, Zhaohui Li","doi":"10.1002/lpor.202401832","DOIUrl":"https://doi.org/10.1002/lpor.202401832","url":null,"abstract":"Highly efficient acousto-optic modulation plays a vital role in microwave-to-optical conversion. Herein, a hybrid thin-film lithium niobate (TFLN) racetrack micro-ring acousto-optic modulator (AOM) implemented with a low-loss chalcogenide (ChG) waveguide is demonstrated. By engineering the electrode configuration of the interdigital transducer, the double-arm micro-ring acousto-optic modulation is experimentally confirmed in a non-suspended ChG-loaded TFLN waveguide platform. Varying the position of the blue-detuned bias point, the half-wave-voltage-length product <i>V</i>\u0000_π<i>L</i> of the hybrid TFLN micro-ring AOM is as small as 9 mV cm. Accordingly, the acousto-optic coupling strength is estimated to be 0.48 Hz s^1/2 at an acoustic frequency of 0.84 GHz. By analyzing the generation of sideband photon number coupled out of the cavity, the ratio between the microwave photons and first-order optical sideband photons is calculated to be 2.2 × 10⁻⁷% at room temperature. Highly efficient micro-ring acousto-optic modulation thus provides new opportunities for expanding TFLN-ChG hybrid piezo-optomechanical devices applied in the low-power-consumption quantum information transduction.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Guided-Mode Resonance Polarization-Sensitive Narrowband InGaAs Photodetector","authors":"Junho Jang, Dae-Myeong Geum, Il-Suk Kang, Yeon-Wha Oh, Sanghee Jung, Huijae Cho, SangHyeon Kim","doi":"10.1002/lpor.202401253","DOIUrl":"https://doi.org/10.1002/lpor.202401253","url":null,"abstract":"The increasing demand for extracting comprehensive information from light through multispectral and polarization imaging has driven the development of advanced photodetection technologies. In response, a polarization-sensitive narrowband InGaAs photodetector (PD) operating in the short-wave infrared (SWIR) range is proposed, capable of capturing wavelength, intensity, and polarization data concurrently without additional optical components. The device is formed by integrating an InGaAs PD onto a silicon grating, utilizing the guided-mode resonance (GMR) effect to amplify absorption at specific target wavelengths. The intrinsic polarization dependence of the 1D GMR structure allows for distinct absorption peaks for TE and TM polarized light. The detection performance of the device, including spectral rejection ratios greater than 30, peak responsivities of 0.46 A W⁻¹, and polarization extinction ratios of up to 41.3 is demonstrated. Precise design of the period and arrangement of the grating enables fabrication of pixel arrays with diverse detection wavelengths and polarization directions, in a single process eliminating the process complexity. This is the only capability of this study among previously reported devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"31 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142874168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}