Laser & Photonics Reviews最新文献_第3页

Highly Nonlinear Metal‐Organic Framework Microcrystal for Ultrabroadband and Multiwavelength Coherent Light Emission 用于超宽带和多波长相干光发射的高度非线性金属-有机框架微晶体

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501152

Nikolaj Zhestkij, Svyatoslav Povarov, Sergei Shipilovskikh, Irina D. Yushina, Jean‐François Pierson, Valentin Milichko

{"title":"Highly Nonlinear Metal‐Organic Framework Microcrystal for Ultrabroadband and Multiwavelength Coherent Light Emission","authors":"Nikolaj Zhestkij, Svyatoslav Povarov, Sergei Shipilovskikh, Irina D. Yushina, Jean‐François Pierson, Valentin Milichko","doi":"10.1002/lpor.202501152","DOIUrl":"https://doi.org/10.1002/lpor.202501152","url":null,"abstract":"Nonlinear optical (NLO) crystals are critical for developing coherent light sources that advance fundamental research and technological applications, including metrology, communication, precision machinery, and surgery. While NLO crystals offer unmatched bandwidth and efficiency, their miniaturization contradicts the phase‐matching and crystal size requirements. Here, a non‐centrosymmetric metal–organic framework (MOF) crystal is reported that enables broadband, multi‐wavelength coherent light generation on a microscale. By overcoming the limitations of the most conventional NLO crystals, MOF microcrystal of a fixed orientation supports simultaneously a wide range of NLO effects, initiated by two pump wavelengths in a free space. The second‐ and the third‐order optical nonlinearities in arbitrary direction, coupled with a 1.5 nm3 unit cell and the huge hyperpolarizability of this MOF, facilitates simultaneously a set of the sum‐frequency generation and cascaded processes that span over 350 nm with 7 to 32 coherent peaks of uniform intensity and a quality factor up to 180. Discovered counterintuitive light–matter interaction for MOF microcrystals highlights a new molecular design strategy of NLO microcrystals for miniaturized optoelectronic and communication devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140904","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

Atto‐Watt Photo‐Detection at Mid‐Infrared Wavelengths by a Room‐Temperature Balanced Heterodyne Set‐Up 室温平衡外差装置在中红外波长下的阿特瓦光探测

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501339

Lorenzo Mancini, Pierfrancesco Ulpiani, Chiara Vecchi, Leonardo Daga, Massimiliano Proietti, Carlo Liorni, Massimiliano Dispenza, Francesco Cappelli, Paolo De Natale, Simone Borri, Daniele Palaferri

{"title":"Atto‐Watt Photo‐Detection at Mid‐Infrared Wavelengths by a Room‐Temperature Balanced Heterodyne Set‐Up","authors":"Lorenzo Mancini, Pierfrancesco Ulpiani, Chiara Vecchi, Leonardo Daga, Massimiliano Proietti, Carlo Liorni, Massimiliano Dispenza, Francesco Cappelli, Paolo De Natale, Simone Borri, Daniele Palaferri","doi":"10.1002/lpor.202501339","DOIUrl":"https://doi.org/10.1002/lpor.202501339","url":null,"abstract":"Balanced heterodyne detection (BHD) is a key technology at visible and near‐infrared wavelengths for quantum communication and quantum sensing applications based on coherent read‐out schemes. Extending BHD at mid‐infrared wavelengths (4–11 µm), given the reduced scattering and favourable transparent atmospheric windows, could enable robust earth‐satellite links and few‐photon imaging in high‐noise environments. Currently, quantum applications at these wavelengths are hindered by the lack of high‐sensitivity, room‐temperature photoreceivers; moreover, mid‐infrared single‐photon‐detectors reported to date (superconductors, single‐electron‐transistors, or avalanche‐photodiodes) require cryogenic operation, limiting practicality. Here, a room‐temperature BHD system operating at 4.6 µm‐wavelength with atto‐watt sensitivity level, corresponding to a few tens of photons per second, is demonstrated. This result is obtained by selecting commercially available photodetectors with the highest detectivity and exploiting two heterodyne setups ‐one involving a single quantum‐cascade‐laser (QCL) and an acousto‐optic‐modulator (AOM), and the other one including two QCLs with mutual coherence ensured by a phase‐locked‐loop. Combining a sufficiently high local oscillator (LO) power and the high phase‐coherence between signal and LO is crucial to push the system noise‐equivalent‐power (NEP) to values approaching the shot‐noise‐limit, as confirmed by few‐photons interferometry measurements. This work not only validates viable methods to detect ultra‐low‐intensity signals, but is also potentially scalable to the entire wavelength range already accessible by state‐of‐the‐art mid‐infrared technology.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"10 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133770","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

Measurement of Refractive Index and Thickness of Thin Films Via Polarization‐Projection Interferometry 偏振投影干涉法测量薄膜的折射率和厚度

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501395

Pengfei Zhu, Wei Wu, Di Zhang, Lun Qu, Lu Bai, Lin Li, Juntao Li, Mengxin Ren, Jingjun Xu

引用次数: 0

Orbital‐Angular‐Momentum‐Mediated Information Extraction From Dynamic Scattering 轨道-角动量-动态散射介导的信息提取

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202500978

Rui Ma, Chang Kai Wang, Olga Korotkova, Jing Song He, Wei Li Zhang, Zhi Han Zhu, Dian Yuan Fan, Jun Liu

{"title":"Orbital‐Angular‐Momentum‐Mediated Information Extraction From Dynamic Scattering","authors":"Rui Ma, Chang Kai Wang, Olga Korotkova, Jing Song He, Wei Li Zhang, Zhi Han Zhu, Dian Yuan Fan, Jun Liu","doi":"10.1002/lpor.202500978","DOIUrl":"https://doi.org/10.1002/lpor.202500978","url":null,"abstract":"Intelligent information extraction from a speckled optical field drastically enhances the quality metrics of conventional communication, imaging, and remote sensing systems. Additionally, by leveraging the information mapping into a multitude of orbital‐angular‐momentum (OAM) modes, one can expect a substantial capacity boost in the optical signal transmission through complex environments. However, most of the currently known techniques of this kind are conceptually restricted to the static scattering mechanism. Here, the possibility of transmitting information in a dynamic scattering scenario is investigsted via the intensity cross‐correlation of pairs of the OAM‐dependent speckles. It is theoretically predicted and experimentally confirmed that the intensity cross‐correlation between synchronized OAM‐dependent speckles with distinct OAM indices is immune to the dynamic scattering process, a finding that can be used as a robust mitigation tool against random media. The pair‐OAM mode sorting is then demonstrated under the dynamic scattering regime without any prior knowledge of the scattering process. The results can significantly expand the application scope of the OAM‐mediated information transfer in the presence of complex environments that still constitutes a persistent challenge for traditional optical technologies.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"27 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140901","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

Unravelling the Spatiotemporal Exciton Dynamics in Electrically Pumped Organic Laser Diodes 电泵浦有机激光二极管的时空激子动力学研究

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202500189

Adam Bickerdike, Roderick C. I. Mackenzie, Mujeeb U. Chaudhry

{"title":"Unravelling the Spatiotemporal Exciton Dynamics in Electrically Pumped Organic Laser Diodes","authors":"Adam Bickerdike, Roderick C. I. Mackenzie, Mujeeb U. Chaudhry","doi":"10.1002/lpor.202500189","DOIUrl":"https://doi.org/10.1002/lpor.202500189","url":null,"abstract":"Organic materials offer wide‐band emission covering regions of the spectrum unachievable by conventional semiconductors. If electrically pumped lasing could be demonstrated using these materials, many new classes of optical sensors and detectors could be realized leaving a profound impact on society. Devices fabricated from conducting molecules and polymers have already been demonstrated with polaron densities higher than those which theoretically lead to lasing action; however, threshold remains elusive. Herein, a polymer micro‐OLED is reported that achieves record room‐temperature current densities of 1.5 , however despite this, it is not high enough to reach lasing threshold. Using a combination of nanosecond spectrographic techniques and detailed simulation, the mechanisms inhibiting lasing action is unraveled. It is shown that although as previously thought singlet‐triplet annihilation is important in pushing threshold higher, photon absorption by excited triplets is as (if not more) important in inhibiting lasing action. The complex dynamics of singlets, triplets, and free/excited polarons in these disordered materials are visualized; establishing a pathway to overcome these bottlenecks and realise electrically pumped organic lasing action.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"31 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140902","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

Liquid‐Crystal‐Enabled Varifocal Achromatic Metalens 液晶使能的变焦消色差超透镜

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501901

Qiguang Wang, Yaqian Xu, Zhenghao Guo, Li Chen, Chunyu Huang, Wei Hu

{"title":"Liquid‐Crystal‐Enabled Varifocal Achromatic Metalens","authors":"Qiguang Wang, Yaqian Xu, Zhenghao Guo, Li Chen, Chunyu Huang, Wei Hu","doi":"10.1002/lpor.202501901","DOIUrl":"https://doi.org/10.1002/lpor.202501901","url":null,"abstract":"Integrated planar optical devices with dynamic functionalities are in high demand in the rapidly developing terahertz region. In particular, varifocal achromatic metalenses are urgently needed for biochemical discrimination imaging and nondestructive inspection. Here, a design is proposed to realize a varifocal achromatic metalens. It works on the simultaneous compensation of the diffraction dispersion of a foci‐switchable basic phase profile on the basis of a properly preset group delay of a propagation phase. The concept is demonstrated with a liquid crystal integrated silicon metalens. The major axis orientation of cylindroid meta‐atoms supplies a fixed geometric phase, the photopatterned liquid crystal provides a switchable geometric phase, and the compensation originates from the shape variation of cylindroid meta‐atoms. Both simulations and experiments verify the switchable achromatic focusing at two distinct foci (10.20 and 13.76 mm) across 1.0–1.6 THz. Dual‐depth multispectral imaging is further demonstrated with two medicaments, exhibiting its potential for nondestructive safety screening and pharmaceutical identification. The proposed strategy establishes a framework for next‐generation adaptive terahertz techniques and applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"71 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140899","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

A Scalable Quadratic Nonlinear Silicon Photonics Platform With Printable Entangled Photon‐Pair Sources 具有可打印纠缠光子对源的可扩展二次非线性硅光子平台

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501357

Tom Vandekerckhove, Jasper De Witte, Lisa De Jaeger, Ewoud Vissers, Sofie Janssen, Peter Verheyen, Neha Singh, Dieter Bode, Martin Davi, Filippo Ferraro, Philippe Absil, Sadhishkumar Balakrishnan, Joris Van Campenhout, Dries Van Thourhout, Günther Roelkens, Stéphane Clemmen, Bart Kuyken

{"title":"A Scalable Quadratic Nonlinear Silicon Photonics Platform With Printable Entangled Photon‐Pair Sources","authors":"Tom Vandekerckhove, Jasper De Witte, Lisa De Jaeger, Ewoud Vissers, Sofie Janssen, Peter Verheyen, Neha Singh, Dieter Bode, Martin Davi, Filippo Ferraro, Philippe Absil, Sadhishkumar Balakrishnan, Joris Van Campenhout, Dries Van Thourhout, Günther Roelkens, Stéphane Clemmen, Bart Kuyken","doi":"10.1002/lpor.202501357","DOIUrl":"https://doi.org/10.1002/lpor.202501357","url":null,"abstract":"The integration of second‐order optical nonlinearities into scalable photonic platforms remains a key challenge due to their large sensitivity to fabrication variations. Here, a scalable quadratic nonlinear platform is presented that harnesses the maturity and scalability of existing CMOS processes by heterogeneously integrating periodically poled lithium niobate (PPLN) onto a silicon photonics platform. A generic PPLN design enables frequency conversion on two distinct waveguide geometries with efficiencies comparable to reported lithium niobate on insulator (LNOI) rib waveguides. Reproducible phase‐matching is achieved across the full radius of a commercial 200 mm silicon photonics wafer, leveraging superior CMOS fabrication tolerances. Furthermore, a tuning mechanism is introduced for both blue‐ and red‐shifting of the operating wavelength, fully compensating fabrication‐induced offsets. This enables deterministic phase‐matching over an entire wafer and yields a strategy for wafer‐scale phase‐matched quadratic nonlinearities. Finally, printable photon‐pair sources are realized via spontaneous parametric down‐conversion (SPDC), highlighting the platform's potential for large‐scale quantum optical circuits. These results pave the way for wafer‐scale integration of second‐order optical nonlinearities in large photonic systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"17 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140900","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

Sub‐Bandgap Photon Harvesting in Cu2AgBiI6 Perovskite Enabling Self‐Powered Near‐Infrared Photodetection Cu2AgBiI6钙钛矿亚带隙光子捕获实现自供电近红外光探测

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501533

Yayong Hu, Huiping Gao, Luping Feng, Ruolan Zhang, Shengxu Sun, Gencai Pan, Wenwu You, Zhenlong Zhang, Yanli Mao

{"title":"Sub‐Bandgap Photon Harvesting in Cu2AgBiI6 Perovskite Enabling Self‐Powered Near‐Infrared Photodetection","authors":"Yayong Hu, Huiping Gao, Luping Feng, Ruolan Zhang, Shengxu Sun, Gencai Pan, Wenwu You, Zhenlong Zhang, Yanli Mao","doi":"10.1002/lpor.202501533","DOIUrl":"https://doi.org/10.1002/lpor.202501533","url":null,"abstract":"Near‐infrared (NIR) photodetection has important applications in many fields. To improve NIR response in halide perovskites, two main approaches are reducing the bandgap or creating sub‐bandgap states through doping/alloying. In this study, the existence of sub‐bandgap states in lead‐free perovskite Cu2AgBiI6 (CABI) thin films is confirmed through upconversion luminescence analysis. Benefiting from the sub‐bandgap states absorption, self‐powered photodetectors based on CABI films achieve strong NIR photoresponses significantly below the optical gap. Building upon this foundation, nanocomposite NaCsWO3/polyvinylpyrrolidone (PVP) with localized surface plasmon resonance (LSPR) effect is strategically incorporated into the device to engineer the interface between the CABI film and the hole‐transport layer, thereby achieving simultaneous optimization of light harvesting and carrier transport dynamics. The optimized photodetector can obtain specific photodetectivity of 4.08 ×1 011 and 1.13 × 1011 Jones under 808 and 980 nm light illumination at 0 V bias, respectively. These results demonstrate the enormous potential of lead‐free perovskite as light‐sensing materials and the possibility of designing a new class of NIR photodetectors.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"121 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140940","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

Ultra‐Compact and High‐Speed Thin‐Film Lithium Niobate Tunable Optical Delay Lines 超小型高速薄膜铌酸锂可调谐光延迟线

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-25 DOI: 10.1002/lpor.202501757

Yiwei Xie, Jiachen Wu, Chendu Cao, Shihan Hong, Wenqing Zhang, Yuyan Yao, Qingrui Yao, Haochen Xu, Daoxin Dai

{"title":"Ultra‐Compact and High‐Speed Thin‐Film Lithium Niobate Tunable Optical Delay Lines","authors":"Yiwei Xie, Jiachen Wu, Chendu Cao, Shihan Hong, Wenqing Zhang, Yuyan Yao, Qingrui Yao, Haochen Xu, Daoxin Dai","doi":"10.1002/lpor.202501757","DOIUrl":"https://doi.org/10.1002/lpor.202501757","url":null,"abstract":"High‐speed tunable delay lines are vitally important in various applications. Thin‐film lithium niobate (TFLN), with its excellent electro‐optic effect, holds great potential for applications in fast‐switching tunable delay lines. However, its relatively weak optical mode confinement typically necessitates large bending radii, posing challenges for high‐density photonic integrated circuits. Here, based on TFLN platform, high‐speed and ultra‐compact tunable delay line is demonstrated that leverages ultra‐low‐loss broadened photonic waveguides and multi‐mode multiplexing techniques. Here, three guided‐modes within the multimode delay line are involved to achieve cumulative delays in a compact area. A 5‐bit tunable delay line is successfully designed and fabricated with maximum delay of 9.92 ns delay, a delay step of 320 ps, and a switching speed of 32 ns. The fabricated device features a compact footprint of 1.5 cm2, with measured transmission losses of 0.2, 0.4, and 0.8 dB cm−1 for the three guided‐modes. This work paves the way toward scalable, low‐loss, and high‐speed tunable delay lines for advanced integrated photonic applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"28 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145140903","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

High‐Efficient Switchable Third Harmonic Generation on Thin Film Phase Change Materials 薄膜相变材料的高效可切换三次谐波产生

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-09-24 DOI: 10.1002/lpor.202501669

Daniil A. Litvinov, Olga M. Kushchenko, Petr I. Lazarenko, Alexey O. Yakubov, Alexey V. Yulin, Artem D. Sinelnik

引用次数: 0