Laser & Photonics Reviews最新文献_第9页

Broadband Quantum-Junction Photodiode Achieving Ultralow-Noise Light Sensing 宽带量子结光电二极管实现超低噪声光传感

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-05 DOI: 10.1002/lpor.202500342

Hao Li, Xiaochen Guo, Yinglin Wang, Chao Wang, Xintong Zhang, Yichun Liu

{"title":"Broadband Quantum-Junction Photodiode Achieving Ultralow-Noise Light Sensing","authors":"Hao Li, Xiaochen Guo, Yinglin Wang, Chao Wang, Xintong Zhang, Yichun Liu","doi":"10.1002/lpor.202500342","DOIUrl":"https://doi.org/10.1002/lpor.202500342","url":null,"abstract":"Low-noise photodetectors hold immense promise for advancing weak-light sensing in cutting-edge applications such as health monitoring, intelligent driving, and military surveillance. Quantum-junction photodiode (QJPD), composed solely of light-absorbing quantum dots, are highly expected to overcome the noise limitation of conventional narrow-bandgap semiconductor photodetectors due to their inherent advantages of low hot carrier density as well as weak inter-dot electronic coupling. However, the targeted device engineering of QJPD remains a critical exploration area to fully unlock their low-noise potential. Here, a low-noise, broadband QJPD is proposed through the strategic incorporation of an ultrathin ALD SnOx layer. This SnOx modification efficiently suppresses the interfacial barrier, reduces the interface resistance and minimizes dark current of QJPDs. Consequently, SnOx-modified QJPDs achieve an ultralow noise current of 4.85 × 10−14 A Hz⁻1/2 and a specific detectivity exceeding 1012 Jones across a broad spectral range (350−1050 nm), significantly outperforming unmodified QJPDs (≈1010 Jones) and other n-i-p quantum dot photodetectors (≈109 Jones). SnOx-modified QJPDs enable high-accuracy blood oxygen saturation measurements using near-infrared light and real-time heartbeat monitoring under weak ambient light conditions. This work establishes a foundation for the development of low-noise QJPDs, underscoring their potential for weak-light detection in challenging environments with strong hindering and ambient light.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"28 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905631","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}

引用次数: 0

Quasi-Bound States in the Continuum on Dislocated Bilayer Metal Gratings for Spatiotemporal Vortex Pulse Generation (Laser Photonics Rev. 19(9)/2025) 位错双层金属光栅时空涡脉冲产生的准束缚态（激光光子学，19(9)/2025）

IF 9.8 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-05 DOI: 10.1002/lpor.202570034

Yi Zhou, Renwei Zou, Junjie Zhan, Yubo Wang, Daoxin Dai, Pankaj K. Choudhury, Andrew Forbes, Yungui Ma

引用次数: 0

Undoped Monophase Hybrid Copper(I) Halides with Highly Efficient Excitation‐Dependent Dual‐Color Emission for Multiple Applications 具有高效激发相关双色发射的未掺杂单相杂化铜(I)卤化物

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-04 DOI: 10.1002/lpor.202500171

Pengyu Zhang, Haoyang Guan, Chen Li, Yiping Du, Chao Wang, Li Wang, Kun Zheng, Jiawen Xiao, Zhengguang Yan

{"title":"Undoped Monophase Hybrid Copper(I) Halides with Highly Efficient Excitation‐Dependent Dual‐Color Emission for Multiple Applications","authors":"Pengyu Zhang, Haoyang Guan, Chen Li, Yiping Du, Chao Wang, Li Wang, Kun Zheng, Jiawen Xiao, Zhengguang Yan","doi":"10.1002/lpor.202500171","DOIUrl":"https://doi.org/10.1002/lpor.202500171","url":null,"abstract":"Low‐dimensional hybridized Cu(I)‐based halide materials represent a new class of materials with excellent photoluminescent properties, garnering significant interest as promising candidates for scintillation applications. In this work, a novel metal halide with the structure (PZ)2Cu2I6•H2O (PZ represents piperazine) is reported, which exhibits efficient cyan and orange photoluminescence at room temperature under UV lamps at 254 and 356 nm, respectively, with photoluminescence quantum yields of up to 82.9% and 40.5%. The energy transfer processes are investigated through temperature‐dependent photoluminescence measurements. (PZ)2Cu2I6•H2O demonstrates strong X‐ray absorption and a notable light yield of up to 26 700 photons MeV−1. A novel method has prepared a flexible scintillation film with an ultra‐high spatial resolution of 16 lp mm−1. It has an ultra‐thin thickness averaging only 38 µm and has a ductility of over 275%. Which can be used for X‐ray imaging. Furthermore, owing to its wavelength‐dependent multicolor emission under ultraviolet excitation, it is also suitable for preparing luminescent inks for encrypted anti‐counterfeiting applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902999","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}

引用次数: 0

Surface‐Plasmon‐Assisted Control of Ultrafast Optical Relaxation Traces 超快光学弛豫迹的表面等离子体辅助控制

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-04 DOI: 10.1002/lpor.202500053

Maxim Andreevich Kiryanov, Ilya Alekseevich Novikov, Aleksandr Yurievich Frolov, Tatyana Viktorovna Dolgova, Andrey Anatolyevich Fedyanin

引用次数: 0

Multi‐Channel Secret Sharing and Camouflage in Programmable Metasurface‐Based Wireless Communication 基于可编程元表面的无线通信中的多通道秘密共享和伪装

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-04 DOI: 10.1002/lpor.202500395

Jie Tian, Zhenfei Li, Chong He, Weiren Zhu

{"title":"Multi‐Channel Secret Sharing and Camouflage in Programmable Metasurface‐Based Wireless Communication","authors":"Jie Tian, Zhenfei Li, Chong He, Weiren Zhu","doi":"10.1002/lpor.202500395","DOIUrl":"https://doi.org/10.1002/lpor.202500395","url":null,"abstract":"Information security has become increasingly critical with the widespread development of wireless technologies. However, current information security technologies predominantly rely on either software‐layer or physical‐layer encryption as standalone solutions, both of which present fundamental constraints. In this article, a novel architecture for multi‐channel secret sharing and camouflage is proposed by combining both software‐ and physical‐layer security mechanism based on a programmable metasurface. At the software layer, a one‐time pad (OTP) algorithm employs exclusive‐OR (XOR) operations with dynamic keys and predefined camouflage data to encrypt and share secrets. At the physical layer, the programmable metasurface spatially disperses the shared messages through reconfigurable multi‐beam steering and polarization control. Over‐the‐air experiments demonstrate that the proposed architecture successfully realizes dynamic OTP secret sharing, a capability unattainable with static metasurface‐based systems. The robustness of the system is also verified, underscoring its potential for real‐world applications. Crucially, legitimate users must collaboratively combine all distributed keys and encrypted messages for secret recovery, whereas eavesdroppers intercepting individual channels obtain only non‐decryptable fragments, which correspond to predefined camouflage data. This work synergistically integrates software‐layer encryption with the physical‐layer functionalities of programmable metasurfaces, offering transformative potential for future highly secure wireless networks and distributed data storage architectures.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"23 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905632","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}

引用次数: 0

Double‐Sided Metamaterial for Sensitivity Enhancement in THz Impedance Spectroscopy 用于太赫兹阻抗谱灵敏度增强的双面超材料

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-03 DOI: 10.1002/lpor.202500023

Heena Khand, Rudrarup Sengupta, Gabby Sarusi

{"title":"Double‐Sided Metamaterial for Sensitivity Enhancement in THz Impedance Spectroscopy","authors":"Heena Khand, Rudrarup Sengupta, Gabby Sarusi","doi":"10.1002/lpor.202500023","DOIUrl":"https://doi.org/10.1002/lpor.202500023","url":null,"abstract":"Multi‐layer terahertz (THz) electric‐LC (ELC) resonating metamaterials (MM) have demonstrated an increased sensitivity for detecting dielectric particles deposited in the active area of the MM's capacitive plates, manifesting a red‐shift of the resonance frequency in THz spectroscopy. Various works on multi‐layer metamaterials have suggested using complementary structures or unidentical structures for enhanced THz bandwidth. This work, aimed toward dielectric sensitivity enhancement, presents a double‐sided MM architecture with perfectly aligned identical metasurfaces fabricated on both sides of a Si substrate showing enhanced metamaterial resonance strength. This leads to a greater resonance quality factor and increased plasmonic interaction between the incident THz radiation from the spectrometer and the metasurfaces. Due to identical and aligned resonating metasurfaces on both sides of substrate, a phenomenon of light‐trapping is discovered inside the substrate acting as a cavity, which further contributes to the enhanced resonance strength. This strong plasmonic interaction directly correlates with increased dielectric spectroscopy sensitivity. By applying Fabry–Pérot oscillation – MM resonance decoupling methods to further increase the sensitivity of the double‐sided MM sensor, the study achieves a 14‐times enhancement in dielectric spectroscopy response compared to single surface MM, along with a high dielectric sensitivity of 1400 GHz/RIU and dielectric detection capability of up to 0.0212 µmol/L.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"9 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903000","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}

引用次数: 0

Deep‐Tissue, Large‐FOV 3D NIR‐II Fluorescence Confocal Microscopy With Hundred‐Nanosecond Equivalent Pixel Dwell Time 深层组织，大视场三维近红外共聚焦显微镜，等效像素停留时间为100纳秒

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-03 DOI: 10.1002/lpor.202402307

Shiyi Peng, Xuanjie Mou, Tianxiang Wu, Hequn Zhang, Mingxi Zhang, Jun Qian

{"title":"Deep‐Tissue, Large‐FOV 3D NIR‐II Fluorescence Confocal Microscopy With Hundred‐Nanosecond Equivalent Pixel Dwell Time","authors":"Shiyi Peng, Xuanjie Mou, Tianxiang Wu, Hequn Zhang, Mingxi Zhang, Jun Qian","doi":"10.1002/lpor.202402307","DOIUrl":"https://doi.org/10.1002/lpor.202402307","url":null,"abstract":"Near‐infrared II (NIR‐II, 900–1880 nm) fluorescence confocal microscopy enables in vivo imaging with high spatial resolution at large depth. Nonetheless, three dimensional (3D) imaging requires capturing substantial pixels and prolonged laser scanning, leading to phototoxicity, exogenous probe metabolic decay, and loss of information on dynamic anatomical structures. Strategies to diminish imaging duration can be considered by decreasing the actual pixel dwell time without deterioration of imaging quality. In this study, a novel approach combining NIR‐II fluorescence confocal microscopy is introduced with deep learning interpolation network, which substantially decreases axial sampling frequency requirements, achieving equivalent hundred‐nanosecond pixel dwell time in 3D visualization in vivo. By applying the cerebral vessel interpolation (CVI) network to large field‐of‐view (FOV) 3D NIR‐II fluorescence microscopic imaging, up to a 16‐fold increase has been achieved in laser scanning speed, reducing pixel dwell time from 8 µs to 500 ns. This significantly reduces laser‐induced damage to biological samples, lessens the need for extending the metabolism time of exogenous probes, and facilitates potential rapid biomedical imaging applications. Benchmarking tests show CVI network achieves the best performance compared to conventional interpolation methods on both lateral and axial cross‐sectional images.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"53 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902877","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}

引用次数: 0

Spontaneous Parametric Down‐Conversion in 4H‐SiC Integrated Platform 4H - SiC集成平台中的自发参数下转换

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-02 DOI: 10.1002/lpor.202500104

Xiaodong Shi, Angela Anna Baiju, Veerendra Dhyani, Sihao Wang, Sakthi Sanjeev Mohanraj, Victor Leong, Jiapeng Sun, Boyang Deng, Jingjing Zhang, Yongsheng Wang, Karsten Rottwitt, Haiyan Ou, Di Zhu

引用次数: 0

Mid‐infrared Frequency‐Swept Laser at 50 MScans/s Via Frequency Down‐Conversion of Time‐Stretched Near‐Infrared Pulses 50毫秒扫描速度的中红外扫频激光器，通过时间拉伸近红外脉冲的下变频

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-02 DOI: 10.1002/lpor.202500008

Makoto Shoshin, Takahiro Kageyama, Takuma Nakamura, Kazuki Hashimoto, Takuro Ideguchi

{"title":"Mid‐infrared Frequency‐Swept Laser at 50 MScans/s Via Frequency Down‐Conversion of Time‐Stretched Near‐Infrared Pulses","authors":"Makoto Shoshin, Takahiro Kageyama, Takuma Nakamura, Kazuki Hashimoto, Takuro Ideguchi","doi":"10.1002/lpor.202500008","DOIUrl":"https://doi.org/10.1002/lpor.202500008","url":null,"abstract":"Increasing the sweep rate of mid‐infrared (MIR) frequency‐swept sources offers significant potential for various high‐speed spectroscopy‐based applications. While continuous‐wave frequency‐swept lasers have achieved sweep rates up to 1 MHz, a recently demonstrated time‐stretched ultrashort pulsed laser has reached a significantly higher sweep rate, up to tens of MHz. However, the previous system relied on a bulky femtosecond optical parametric oscillator and produced only ≈30 discrete spectral elements due to the use of a free‐space time stretcher. This study presents a frequency‐swept MIR source that utilizes the frequency down‐conversion of time‐stretched near‐infrared pulses, employing a compact mode‐locked fiber laser and telecommunication fiber. As a proof‐of‐concept demonstration, MIR spectroscopy of methane gas ≈3.4 µm is performed at a rate of 50 MSpectra s−1, capturing 175 spectral elements over a range of 15.1 cm−1. This compact and robust high‐speed MIR frequency‐swept laser system holds the potential for deployment in field applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"56 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901384","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}

引用次数: 0

Bidimensional Carrier Modulation in Nanocolumn‐Array AlGaN p‐i‐n Ultraviolet Photodiodes: Achieving External Quantum Efficiency Over 1000% 纳米柱阵列AlGaN p - i - n紫外光电二极管中的二维载流子调制：实现超过1000%的外量子效率

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-05-02 DOI: 10.1002/lpor.202500347

Jiying Cao, Luming Liu, Huiqin Zhao, Saisai Wang, Jinjie Zhu, Haifan You, Hai Lu, Rong Zhang, Youdou Zheng, Dunjun Chen

{"title":"Bidimensional Carrier Modulation in Nanocolumn‐Array AlGaN p‐i‐n Ultraviolet Photodiodes: Achieving External Quantum Efficiency Over 1000%","authors":"Jiying Cao, Luming Liu, Huiqin Zhao, Saisai Wang, Jinjie Zhu, Haifan You, Hai Lu, Rong Zhang, Youdou Zheng, Dunjun Chen","doi":"10.1002/lpor.202500347","DOIUrl":"https://doi.org/10.1002/lpor.202500347","url":null,"abstract":"High‐sensitivity, low‐power ultraviolet (UV) detection remains a major challenge in optoelectronics, with complex physical mechanisms requiring exploration as devices transition from thin‐film to low‐dimensional structures. Herein, a high‐performance AlGaN p‐i‐n ultraviolet photodetector featuring a vertical nanocolumn‐array architecture is presented. The device demonstrates an exceptional external quantum efficiency of 1090% and a high responsivity of 3 A W−1 at 0 V, significantly showcasing bidimensional carrier modulation capability. In the longitudinal dimension, the polarization field boosts carrier impact ionization within the confined AlGaN nanocolumns, achieving substantial linear gain. In the transverse dimension, acceptor surface states induce Fermi‐level pinning, forming a surface electron barrier that directs more electrons into the bulk nanocolumn while facilitating hole migration to the surface. This mechanism significantly enhances the separation and extraction of photogenerated carriers. Leveraging excellent linear response, single‐pixel UV imaging capabilities are successfully realized. This novel UV photodetector, with its bidimensional carrier modulation mechanism, paves the way for the development of advanced electronic devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"24 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901383","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}

引用次数: 0