Laser & Photonics Reviews最新文献

{"title":"Flexibly Prepared Tb3+-Doped Oxyfluoride Glass Scintillators with Enhanced Luminescence for X-Ray Imaging and Detection","authors":"Dandan Zhang, Shisheng Lin, Mengling Xia, Yu Rao, Sen Qian, Jing Ren, Xianghua Zhang, Yinsheng Xu, Daqin Chen","doi":"10.1002/lpor.202500354","DOIUrl":"https://doi.org/10.1002/lpor.202500354","url":null,"abstract":"The development of eco-friendly, flexibly preparable, and highly efficient glass scintillators is of paramount importance for practical applications in fields such as medical imaging and radiation detection. Herein, a series of Tb³⁺-doped oxyfluoride glass is successfully synthesized using the high-temperature melt-quenching method. The oxyfluoride glasses exhibit bright green photoluminescence with an internal quantum yield (IQE) of 95.6% and high optical transmittance exceeding 85% at 550 nm. Specifically, the optimized LASNG: 4 mol% Tb³⁺ glass demonstrates superior performance, including a significantly enhanced X-ray excites luminescence (XEL) with an integrated intensity 209% that of Bi₄Ge₃O₁₂ (BGO) and an exceptional spatial resolution of 30 lp∙mm⁻¹ under X-ray irradiation-surpassing most of the reported glass scintillators. Additionally, it also exhibits a linear response to X-ray dose rates with a low detection limit of 1.5 µGy∙s⁻¹ and maintains excellent irradiation stability under continuous X-ray exposure. This study proposes a promising approach for the development of cost-effective, high-resolution, and scalable glass scintillators tailored for X-ray imaging and detection applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"21 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736545","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":"White-Light Sensitization Strategy for Upconverting Anticounterfeiting","authors":"Yi Liu, Feng Liu, Chengrui Wang, Lizhu Sun, Bingbing Yang, Hao Wu, Liangliang Zhang, Jiahua Zhang, Xiao-jun Wang, Yichun Liu","doi":"10.1002/lpor.202500083","DOIUrl":"https://doi.org/10.1002/lpor.202500083","url":null,"abstract":"Upconversion luminescence (UCL) presents a promising avenue for optical anticounterfeiting applications; however, its practical implementation is often limited by low visibility in bright environments. In this study, a white-light sensitization strategy is introduced to significantly amplify UV UCL for improved security measures under well-lit conditions. By integrating 808 nm infrared excitation with a white-light flashlight exposure, a ten-fold increase in UCL intensity at 354 nm is achieved from a NaYF₄:Nd³⁺ phosphor. This enhancement arises from a multi-photon excitation process, wherein white light directly populates the high-lying ⁴G_7/2 and ⁴G_5/2 intermediate levels of Nd³⁺, excited states otherwise only accessible via two-photon infrared absorption. This white-light sensitization approach enables robust UV UCL emission to be detected even in bright settings, overcoming a major limitation of traditional UCL-based anticounterfeiting. Moreover, the feasibility of this method is demonstrated through UV imaging, highlighting its potential for advancing security and authentication technologies.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"216 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736546","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":"Second Harmonic Generation in Lithium Niobate on Insulator","authors":"Lun Qu, Wei Wu, Wei Cai, Mengxin Ren, Jingjun Xu","doi":"10.1002/lpor.202401928","DOIUrl":"https://doi.org/10.1002/lpor.202401928","url":null,"abstract":"This paper reviews recent advancements in second harmonic generation (SHG) within nanostructures of lithium niobate on insulator (LNOI). SHG devices are classified into in-plane and out-of-plane configurations, highlighting their suitability for different pumping conditions. The in-plane devices, with their small mode volume and ultra-narrow linewidth, demonstrate high-efficiency SHG under continuous wave pumping, making them ideal for miniaturized on-chip integrated devices. In contrast, the vertical cavities are best suited for broadband pulsed lasers, facilitating the creation of compact ultra-thin devices. This review summarizes the recent strides made in enhancing SHG efficiency for different designs in LNOI platform and underscores the potential of LN micro- and nanostructures to fulfill the requirements of modern ultracompact nonlinear devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"19 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737158","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":"Ultraviolet-C Vertical-Cavity Surface-Emitting Lasers with Precise Cavity Length Control","authors":"Estrella Torres, Joachim Ciers, Nelson Rebelo, Filip Hjort, Michael A. Bergmann, Sarina Graupeter, Johannes Enslin, Giulia Cardinalli, Tim Wernicke, Michael Kneissl, Åsa Haglund","doi":"10.1002/lpor.202402203","DOIUrl":"https://doi.org/10.1002/lpor.202402203","url":null,"abstract":"In vertical-cavity surface-emitting lasers (VCSELs), the cavity length defines the resonance wavelength, which is directly related to the laser detuning, that is, the difference between resonance wavelength and gain peak. A low detuning maximizes the modal gain leading to a reduction of the threshold. Therefore, controlling the cavity length of VCSELs is of great importance. Here optically pumped ultraviolet-C (wavelength <span data-altimg=\"/cms/asset/d57feef1-9b06-406c-8cf7-efc907b5b4bb/lpor202402203-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"61\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202402203-math-0001.png\"><mjx-semantics><mjx-mo data-semantic- data-semantic-role=\"inequality\" data-semantic-speech=\"less than or equals\" data-semantic-type=\"relation\"><mjx-c></mjx-c></mjx-mo></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor202402203:lpor202402203-math-0001\" display=\"inline\" location=\"graphic/lpor202402203-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mo data-semantic-=\"\" data-semantic-role=\"inequality\" data-semantic-speech=\"less than or equals\" data-semantic-type=\"relation\">≤</mo>$le$</annotation></semantics></math></mjx-assistive-mml></mjx-container> 280 nm) VCSELs with precise cavity length control are demonstrated. The VCSEL structure is formed by an AlN cavity with 5 <span data-altimg=\"/cms/asset/27c4a68f-7b40-4a2c-8633-660349f2bc57/lpor202402203-math-0002.png\"></span><mjx-container ctxtmenu_counter=\"62\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202402203-math-0002.png\"><mjx-semantics><mjx-mrow><mjx-mo data-semantic- data-semantic-role=\"unknown\" data-semantic-speech=\"times\" data-semantic-type=\"operator\"><mjx-c></mjx-c></mjx-mo><mjx-mrow></mjx-mrow></mjx-mrow></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor202402203:lpor202402203-math-0002\" display=\"inline\" location=\"graphic/lpor202402203-math-0002.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mrow><mo data-semantic-=\"\" data-semantic-role=\"unknown\" data-semantic-speech=\"times\" data-semantic-type=\"operator\">×</mo><mrow></mrow></mrow>$ensuremath{times{}}$</annotation></semantics></math></mjx-assistive-mml></mjx-container> Al<sub>0.40</sub>Ga<sub>0.60</sub>/Al<sub>0.70</sub>Ga<sub>0.30</sub>N quantum wells and a top HfO<sub>2</sub> spacer layer with dielectric SiO<sub>2</sub>/HfO<sub>2</sub> distributed Bragg reflectors on both sides of the cavity. To access the N-face side of the cavity, a new methodology referred to as photo-assisted electrochemical etching is employed for substrate removal. Across a 0.9 mm <span data-alti","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"7 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734420","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":"Multichannel Fusion Structured Light 3D Imaging Based on Metasurfaces","authors":"Peng Liu, Fan Xu, Jiaru Chu, Yuhang Chen","doi":"10.1002/lpor.202402297","DOIUrl":"https://doi.org/10.1002/lpor.202402297","url":null,"abstract":"Structured light imaging, an advanced technology in computational 3D imaging, illuminates the target scene with structured light and then decodes the modulated light information to reconstruct the 3D object. The current structured light imaging systems are typically composed of a multitude of bulky diffractive optical elements and lenses, which impede their prospective integration and miniaturization. Furthermore, they are constrained to provide a narrow field of view and limited encoding information. Here, a multichannel fusion metasurface-based structured light imaging method is proposed, which can project two sets of phase-shifted fringes via a polarization multiplexed metasurface. This method allows for the encoding and analysis of more intricate information in the scene, including two sets of speckle patterns and two sets of fringe phases, by switching the orthogonal polarization orientation of the incident linearly polarized light. To fully exploit the modulated information, a speckle-and-phase fusion stereo reconstruction framework is developed, which enables high-resolution and high-precision 3D imaging via the fusion of multichannel information. This systematic solution for the metasurface-based structured light imaging paves the way for its practical applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"31 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734422","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":"1D Core–Shell Radial Heterojunction for High-Performance and Self-Powered Broadband Photodetector","authors":"Yi Ma, Wendong Lu, Wanyu Wang, Fumeng Zhang, Xiaoyu Xie, Zengliang Shi, Xiaoxuan Wang, Chunxiang Xu","doi":"10.1002/lpor.202402234","DOIUrl":"https://doi.org/10.1002/lpor.202402234","url":null,"abstract":"Through strategic engineering of component composition and energy band alignment, 1D core–shell nanostructures can be precisely designed as suitable radial heterostructures to confine the optical field and regulate carrier transport. These core–shell structures synergistically integrate and extend the functionalities of individual materials or devices. By integrating a <i>p</i>-type narrow-band Se material with an <i>n</i>-ZnO core, a 1D ZnO/Se core–shell radial heterojunction is fabricated for a self-powered broadband photodetector (PD). This 1D ZnO/Se core–shell radial heterostructure exhibits there main advantages: 1) forming a radial channel to make carriers transport more efficiently; 2) improving the efficiency of carrier transport and collection by introducing the high conductivity of Se layer; 3) passivating the surface defects of ZnO by Se shell layer. As a result, this core–shell radial heterojunction demonstrates high responsivity and detectivity across UV to visible light spectrum, with fast photoresponse times of 377/532 µs for rise/decay. These results revealed the superiority of 1D core–shell radial heterojunction in high-performance PDs, showing great potential for application in the development of advance optoelectronic devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"16 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713545","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":"Polarization Manipulation of Polariton Condensates in Organic Microcavities","authors":"Bin Wang, Jiahuan Ren, Shaoxian Huang, Xuekai Ma, Wei Dang, Chunling Gu, Cunbin An, Xiaohui Zhao, Qing Liao","doi":"10.1002/lpor.202402217","DOIUrl":"https://doi.org/10.1002/lpor.202402217","url":null,"abstract":"The polarization or spin manipulation of photons attracts significant attention in modern photonics. However, the severe dispersion of photons in planar microcavities inevitably leads to difficulties in achieving wavelength-dependent photonic spin operation. In this study, pseudo-spin manipulation of polariton condensates in an organic crystal-filled microcavity is achieved, confirmed by the corresponding emitted polarized light. By adjusting the incident wavevector of the off-resonant pumping laser, the energies and polarizations of polariton condensates can be continuously manipulated. Surprisingly, the individual left-handed or right-handed circularly polarized condensates can be selectively emerged at the specific wavevectors of the incident laser along a specific direction of the organic crystal. This spin manipulation of polariton condensates holds significant implications in optoelectronics, particularly in the exploration of topological photonics and chiral optics in the strong light-matter coupling regime.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703595","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":"Reconfigurable MEMS-based Perfect Meta-absorber with Ultrahigh-Q and Angle-dependent Characteristics for Sensing Applications","authors":"Kunye Li, Xi Li, Yu-Sheng Lin","doi":"10.1002/lpor.202500288","DOIUrl":"https://doi.org/10.1002/lpor.202500288","url":null,"abstract":"We present two designs of perfect meta-absorbers (PMAs) utilizing metallic plasmonic grating, and they have resonances with ultranarrow bandwidth in the order of nanometers and great surface electric field enhancement through the coupling resonance of surface plasmon polaritons (SPPs) and grating surface waves. Notably, the grating-coupled plasmonic resonance demonstrates pronounced incident angle dependence and ambient refractive index sensitiveness. Meanwhile, its dependencies are almost linearly controlled. PMA with metal-metal grating (MMG) structure has period-dependent angular sensitivity and shows a refractive index sensitivity of 4.0039 µm/RIU that maximum figure of merit (FOM) value is 2300 RIU⁻¹ under normal incident light. The sensitivities are 3.6514 µm/RIU and 4.3486 µm/RIU and FOM values are 2783 RIU⁻¹ and 3941 RIU⁻¹ for two different resonances under oblique incidence of 5°. Another design of PMA with metal-insulator-metal grating (MIMG) structure has both grating-coupled SPP and localized surface plasmon (LSP) modes, and it can achieve single-frequency resonance scanning in the spectral region from wavelengths of 3 µm to 5 µm by changing the incident angle or ambient refractive index. Finally, a reconfigurable PMA achieves the active regulation of the irradiation angle and can simultaneously realize the functions of tuning, angular sensing and refractive index sensing and so on.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713546","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":"Golden Vaterite as a Thermo-Optical Agent","authors":"Andrei Ushkov, Pavel Bezrukov, Denis Kolchanov, Andrey Machnev, Pavel Ginzburg","doi":"10.1002/lpor.202500461","DOIUrl":"https://doi.org/10.1002/lpor.202500461","url":null,"abstract":"Thermo-optical therapeutic approaches offer precise temperature control using light, opening new possibilities in targeted drug delivery, cancer therapy, and tissue engineering. Compared to traditional single-function plasmonic particles, mesoporous metamaterial-like nanostructures can operate in the infrared spectrum, matching the biological transparency window, while also acting as carriers for therapeutic agents. This study explores the thermo-optical characteristics of golden vaterite, a mesoporous calcium carbonate loaded with gold nanoparticles, forming a metamaterial capsule. Heating capabilities of individual particles are measured in an optical trap, where local temperature is derived from stochastic dynamics influenced by temperature-dependent viscosity. A calibration step or the use of tabulated data enables accurate mapping between irradiated power and particle temperature. Four sets of particles with varying gold content are tested, demonstrating temperature increases of up to several tens of degrees with milliwatt-scale infrared continuous-wave lasers. Heating efficiencies (𝑑𝑇/𝑑𝑃) as high as 30 °C mW⁻¹ are observed. Additionally, optomechanical tools with microfluidic features allowed efficient prototyping of thermo-optical agents without fluorescent markers. Golden vaterite, capable of both thermal and optical functions, presents a versatile platform for developing theranostic particles for heat-based optical applications and targeted therapeutic delivery.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"57 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713547","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":"Athermal Forward Stimulated Brillouin Scattering","authors":"Yuli Ren, Tianfu Li, Ruogu Wang, Hongwei Li, Dexin Ba, Yongkang Dong","doi":"10.1002/lpor.202402071","DOIUrl":"https://doi.org/10.1002/lpor.202402071","url":null,"abstract":"Forward-stimulated Brillouin scattering (FSBS) in optical waveguides is a nonlinear optical effect that involves the acousto-optic interaction between co-propagating light and guided acoustic waves, showcasing significant potential for applications in integrated photonic and sensing fields. However, the resonance frequency of guided acoustic waves stimulated by FSBS is highly sensitive to fluctuations in ambient temperature, leading to uncertainty in the frequency evaluation of the FSBS system. Herein, the novel mechanism of “athermal FSBS” is proposed, where the resonance frequency remains unaffected by temperature variations. Through simulation and experimentation, the FSBS spectra characteristics of aluminum-coated optical fiber are demonstrated to be insensitive to temperature fluctuations when the ratio of the radius of the silica to the thickness of the aluminum is ≈2.21; at this point, the temperature dependence of the acoustic velocity of the aluminum coating is precisely counterbalanced with that of the cladding material. Meanwhile, this research confirms that the temperature property of the central frequency of FSBS spectra in aluminum-coated fibers can be controlled by modulating the optomechanical interaction. Thermally stabilized aluminized waveguides are expected to be utilized in athermal fiber lasers, filters, and on-chip silicon waveguides, thereby advancing the progression of FSBS in the integrated photonics domain.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"58 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695442","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}