Laser & Photonics Reviews最新文献

{"title":"Measurement of Highly Nonlocal Nonlinear Responses via Circular Airy Beams","authors":"Pengbo Jia, Zhaochen Li, Xiaolan Hu, Domenico Bongiovanni, Xingdong Zhao, Shiqiang Xia, Keyu Su, Yingying Zhang, Zunlue Zhu, Yi Hu","doi":"10.1002/lpor.202401934","DOIUrl":"https://doi.org/10.1002/lpor.202401934","url":null,"abstract":"Structured light is extensively employed in optical measurements due to its exotic behaviors in light-matter interactions. Notably, it exhibits exceptional capability in detecting the nonlinear response of optical media. Nevertheless, current detections enabled by structured light are limited to local nonlinearities. Here, an approach for measuring highly nonlocal nonlinear responses via a circular Airy beam is demonstrated. Under the action of a highly nonlocal nonlinearity, the profile of the beam is reshaped to a ring pattern whose size is linearly increased with the injected optical power. The slope of the linear relation reveals the nonlocal response, as proved by the theory. Experimentally, the method is verified by testing a typical medium having a highly nonlocal nonlinearity. The findings may trigger more studies on the measurement of optical nonlinearities via structured light.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678342","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":"Ultralow Photon Flux OWC Links Using UV-C Single-Photon Detection","authors":"Feng Liu, James Farmer, Grahame Faulkner, Jonathan J. D. McKendry, Enyuan Xie, Qianfang Zheng, Zhaoming Wang, Jianming Wang, Jordan Hill, Johannes Herrnsdorf, Martin D. Dawson, Dominic O'Brien","doi":"10.1002/lpor.202401804","DOIUrl":"https://doi.org/10.1002/lpor.202401804","url":null,"abstract":"Low photon flux optical wireless communication (OWC) links are difficult to operate under normal daylight conditions as the interference from daylight will overwhelm any signal. However, in the UV-C region of the spectrum, light from the sun is highly attenuated, offering the possibility of link operation. In this paper, ultralow photon flux OWC links using a UV-C micro-LED and a silicon photomultiplier (SiPM) based UV-C single-photon detector (SPD) are reported. A 1 megabaud per second (MB s<sup>−1</sup>) symbol rate 128-pulse-position modulation (128-PPM) link is demonstrated with 7.7 transmitted photons per bit, corresponding to 0.97 detected photon per bit. A maximum bit rate of 120 Mbit s<sup>−1</sup> is achieved in 8-PPM links with a transmitted power of 1.7 nW. In addition, a 500 MHz single-photon link is established with a bit error rate (BER) of <span data-altimg=\"/cms/asset/836f6fbe-04c2-4e93-a930-fcc5d0e54f27/lpor202401804-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"65\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202401804-math-0001.png\"><mjx-semantics><mjx-mrow data-semantic-children=\"0,6\" data-semantic-content=\"1\" data-semantic- data-semantic-role=\"unknown\" data-semantic-speech=\"4.32 times 10 Superscript negative 2\" data-semantic-type=\"infixop\"><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"float\" data-semantic-type=\"number\"><mjx-c></mjx-c><mjx-c></mjx-c><mjx-c></mjx-c><mjx-c></mjx-c></mjx-mn><mjx-mo data-semantic- data-semantic-operator=\"infixop,×\" data-semantic-parent=\"7\" data-semantic-role=\"unknown\" data-semantic-type=\"operator\" rspace=\"4\" space=\"4\"><mjx-c></mjx-c></mjx-mo><mjx-msup data-semantic-children=\"2,5\" data-semantic- data-semantic-parent=\"7\" data-semantic-role=\"integer\" data-semantic-type=\"superscript\"><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"6\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c></mjx-c><mjx-c></mjx-c></mjx-mn><mjx-script style=\"vertical-align: 0.393em;\"><mjx-mrow data-semantic-annotation=\"clearspeak:simple\" data-semantic-children=\"4\" data-semantic-content=\"3\" data-semantic- data-semantic-parent=\"6\" data-semantic-role=\"negative\" data-semantic-type=\"prefixop\" size=\"s\"><mjx-mo data-semantic- data-semantic-operator=\"prefixop,−\" data-semantic-parent=\"5\" data-semantic-role=\"subtraction\" data-semantic-type=\"operator\" rspace=\"1\"><mjx-c></mjx-c></mjx-mo><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"5\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c></mjx-c></mjx-mn></mjx-mrow></mjx-script></mjx-msup></mjx-mrow></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"71 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678343","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":"Achieving Dispersion-Free and Non-Iterative Glare Suppression in Multimode Optical Fibers","authors":"Han Gao, Haifeng Hu, Qiwen Zhan","doi":"10.1002/lpor.202402283","DOIUrl":"https://doi.org/10.1002/lpor.202402283","url":null,"abstract":"Suppressing scattering-induced glare is essential for enhancing the detection capabilities of weak objects. While wavefront shaping techniques have shown promise in achieving glare suppression, existing methods often rely on time-consuming iterative feedback processes and struggle to address distortions caused by dispersion. Here, a novel glare-suppressed principal mode capable of simultaneously suppressing both glare and dispersion in dispersive media is presented and experimentally demonstrated. This approach achieves efficient, large-scale glare suppression without iterative adjustments, maintaining exceptional consistency across a wide frequency range. Unlike traditional methods, this technique requires only a single measurement of the multispectral transmission matrix and the computation of the Wigner–Smith operator, making it both straightforward and highly efficient. The non-iterative nature and versatility of this method enable seamless integration into diverse systems, offering a robust framework for advanced imaging and sensing in scattering environments. It is believed that this innovation has the potential to drive significant progress in optical communication, biomedical imaging, and beyond.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678339","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":"Bridging the Mode-Locked and Q-Switched Regimes in Fiber Lasers","authors":"Gang Wang, Bo Fu, Jingxuan Sun, Chenghong Zhang, Congyu Zhang, Jiaye Wu, Camille-Sophie Brès, Lijun Xu","doi":"10.1002/lpor.202402171","DOIUrl":"https://doi.org/10.1002/lpor.202402171","url":null,"abstract":"Mode-locking and Q-switching are two widely used pulsing techniques based on different mechanisms. In practice, both lasing regimes can be realized within the same laser system, while the current research on their transition dynamics presents challenges in both numerical calculation and experiments and therefore remains confined only at the observation level. Here, for the first time, the mode-locked and Q-switched regimes are unified under a proposed model, addressing this challenge of simultaneously capturing both gain evolution and nonlinear propagation for both regimes. In light of this model, a robust method based on optical feedback is developed and verified experimentally, demonstrating a convenient real-time switching between the mode-locked and Q-switched states. The measured transitional dynamics closely align with the theoretical model, showcasing the strong correlation between pulse instability and gain depletion that connects the two regimes. The results uplift the significance of the often-overlooked gain dynamics and deepen the understanding of the onset and demise of mode-locked and Q-switched regimes.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"3 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678340","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":"Optomechanically and Thermo-Optically Driven Interactions Between Gilded Vaterite Particles in Bubbles","authors":"Hod Gilad, Andrey Ushkov, Denis Kolchanov, Andrey Machnev, Toms Salgals, Vjačeslavs Bobrovs, Hani Barhum, Pavel Ginzburg","doi":"10.1002/lpor.202500081","DOIUrl":"https://doi.org/10.1002/lpor.202500081","url":null,"abstract":"The capability to tailor mutual interactions between colloidal nanoparticles strongly depends on the length scales involved. While electrostatic and optomechanically driven interactions can cover nano and micron-scale landscapes, controlling inter-particle dynamics at larger distances remains challenging. Small physical and electromagnetic cross-sections of nanoparticles make long-range interactions, screened by a fluid environment, inefficient. To bypass the limitations, we demonstrated that forming micron-scale bubbles around gilded vaterite particles enables mediating long-range interactions via thermo-optical forces. Femtosecond laser illumination is used to induce the encapsulation of light-absorbing particles within long-lasting micron-scale bubbles. Distinct regimes of bubble growth are observed, facilitated by optical tweezers and fluid flow. In the femtosecond regime, long-lasting bubbles, stable for minutes or longer, are generated and remain intact even after the laser is turned off. Conversely, in the continuous-wave (CW) regime, the bubbles collapse immediately upon deactivation of the light source. Experiments show bubble-induced laser collimation over millimeter-scale distances owing to a negative lens action of the primary bubble. The refracted beams initiate the formation of secondary bubbles around nearby gilded vaterite particles. Consequently, the ability to control secondary bubble motion is demonstrated by pushing and pulling it with optical radiation pressure force and by thermocapillary (Marangoni) effect, respectively.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"183 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678341","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":"Intensive Enhancement of Near-Infrared Emission in ZnAl2O4:Fe3+ via Li-Substitution for Application in Identifying Lithium Bearing Ores","authors":"Lu Chen, Meng Sun, Changshuai Gong, Xuejiao Wang, Shuai Tang, Tao Zhang, Qi Zhu","doi":"10.1002/lpor.202402135","DOIUrl":"https://doi.org/10.1002/lpor.202402135","url":null,"abstract":"Owing to the extensive use of lithium compounds in various strategic emerging fields, the global demand for lithium minerals has surged in recent years. However, the existing spectroscopic techniques tend to be time-consuming and inefficient. As a result, there is an urgent need for the development of efficient and rapid methods for identifying lithium ores. Here, by choosing the environment-friendly Fe³⁺ ions as activators and ZnAl₂O₄ (ZAO) spinel oxide as the host, the novel Li⁺-sensitive materials of Zn_1-<i>_x</i>Li<i>_x</i>Al₂O₄:Fe³⁺ (ZLAO:Fe³⁺) near-infrared (NIR) phosphors are synthesized. The oxygen vacancy defect levels are reduced due to the occupation of interstitial sites by Li⁺, thus prohibiting detrimental electron trapping. Meanwhile, the site preference and valence state of Fe ions are altered by Li⁺ doping, resulting in more efficient utilization of excited electrons by Fe³⁺ in the octahedral sites for radiative transitions. Notably, the optimal ZLAO:Fe³⁺ (<i>x</i> = 0.4) phosphor presents a 53-fold higher NIR emission intensity than that of ZAO:Fe³⁺ and an outstanding thermal stability (86%@373 K, 74%@423 K). The NIR ceramic plates sensitive to additional Li⁺ are fabricated and their application in identifying lithium bearing ores is demonstrated. The proposed strategy initiates a new way to design Fe³⁺-activated NIR materials for multifunctional applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"3 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678344","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 Self-Adaptive Switchable Transparency/Invisibility Cloak Based on Programmable Metasurface","authors":"Hai Lin Wang, Yan Kai Zhang, Yue Teng Cheng, Tai Yi Zhang, Sen Zheng, Tie Jun Cui, Hui Feng Ma","doi":"10.1002/lpor.202500057","DOIUrl":"https://doi.org/10.1002/lpor.202500057","url":null,"abstract":"Metamaterial-based invisibility cloaks have garnered significant attention in recent decades. However, due to the electromagnetic (EM) shielding provided by the cloak, the internal object can no longer communicate with the outside world in real-time in the invisibility frequency band, which significantly limits the practical application of the cloaks. In this paper, a self-adaptive switchable transparency/invisibility (SASTI) cloak is proposed and experimentally demonstrated using full-space (meaning transmission and reflection half-spaces) programmable metasurface. This cloak can be automatically switched between the invisibility and transparency modes based on real-time commands from a sensing antenna used to monitor external threat detection waves. In the transparency mode, the SASTI cloak is completely transparent to the EM waves and can be used as an information transmitter, enabling real-time communications between the internal cloaked object and the external cooperative equipment. In the invisibility mode, the SASTI cloak can achieve EM stealth and EM illusion against noncooperative detectors by changing its scattering characteristics. The proposed SASTI cloak is promising to be applied in future intelligent meta devices and information security systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143675390","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":"Photonic Terahertz Hyperspectral Imaging with Swept-Frequency Dual Combs","authors":"Xing Fang, Lu Zhang, Zuomin Yang, Hongqi Zhang, Zhidong Lyu, Hang Yang, Nan Li, Xianbin Yu","doi":"10.1002/lpor.202400696","DOIUrl":"https://doi.org/10.1002/lpor.202400696","url":null,"abstract":"Hyperspectral imaging is a spectroscopic imaging technique that allows for the reconstruction of the geometric structure and spectral features of objects. Particularly terahertz (THz) technology has emerged as a pivotal tool across various applications, ranging from non-ionizing gas sensing to cancer diagnosis and nondestructive artifact testing. However, contemporary terahertz imaging systems are still challenged by insufficient spectral accuracy and limited tuning range of THz sources. In this paper, for the first time, a swept-frequency dual-comb THz source with excellent frequency resolution and flexible tunability is proposed and demonstrated in applications of hyperspectral imaging. The swept-frequency dual-comb THz source is conceived by the photomixing of frequency-modulated continuous waves and dual electro-optic combs. As a pioneering approach, the swept-frequency dual-comb breaks the trade-off between spectral bandwidth and frequency resolution in dual-comb systems, achieving a frequency resolution of 50 MHz under a spectral bandwidth of over 100 GHz. These breakthroughs chart an exciting course toward the development of high-performance and user-friendly THz imaging systems, which hold great potential in applications such as security screening, chemistry, and biomedicine.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"57 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143675389","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":"Single Ultrafast Pulses Shaped to Spatiotemporal Images","authors":"Bingjun Wu, Hongliang Zhang, Guancheng Chen, Yeyang Sun, Wanyi Zhang, Shiyao Zhu, Zhaoju Yang, Zhichao Ruan","doi":"10.1002/lpor.202402238","DOIUrl":"https://doi.org/10.1002/lpor.202402238","url":null,"abstract":"Spatiotemporal structured light reveals numerous novel physical phenomena and promises new avenues in optics and photonics. It is highly demanded to achieve customized high-fidelity spatiotemporal field manipulation with a single ultrafast pulse. Here, we propose a checkerboard modulation scheme, with the simple setup of a cylindrical-lens-grating-lens configuration, successfully shaping a single ultrafast pulse into customized spatiotemporal images. We experimentally demonstrate spatiotemporal images, such as panda, QR code, and Zhejiang University eagle logo, in the spatial and temporal dimensions. By manipulating both the amplitude and phase of the pulse, we achieve spatiotemporal vortex arrays with different orbital angular momenta at various spatiotemporal positions, with spatiotemporal-mode division multiplexing potential for optical communications. The realization of customized spatiotemporal control of ultrafast pulses paves a new way both for fundamental research on light–matter interactions and in broader applications of spatiotemporal structured light.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"10 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672616","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":"High-Speed Multimode Fiber Imaging Using Binary-Modulated Silicon Photonics Optical Phased Array","authors":"Gaolei Hu, Yue Qin, Hongnan Xu, Hon Ki Tsang","doi":"10.1002/lpor.202402206","DOIUrl":"https://doi.org/10.1002/lpor.202402206","url":null,"abstract":"Multimode fiber (MMF) imaging is a powerful technique for minimally invasive endoscopy. However, the absence of high-speed spatial light modulators (SLMs) poses a challenge in the pursuit of high-speed, real-time MMF imaging. Silicon optical phased array (OPA) serves as a possible solution to high-speed mode field manipulation; however, the nonlinearity in the phase response of silicon p-i-n diodes makes it unfeasible to realize precise multilevel control at a high speed. In this paper, it is shown that the driving scheme of p-i-n diodes in a silicon OPA can be simplified by using binary modulation, enabling the use of high-speed digital voltage drivers instead of high-precision digital-to-analog converters. The OPA achieves modulation at 1 MHz, which is three times faster than state-of-the-art SLMs. Experimental results demonstrate a frame rate of up to 500 frames per second. The image-reconstruction period is as short as 0.1 ms per frame, making the system suitable for real-time imaging. The measured spatial resolution is 2.3 µm with a field of view diameter of 105 µm, which approaches the diffraction limit.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"16 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672617","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}