Laser & Photonics Reviews最新文献

{"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}

{"title":"Reflections on the Spatial Exponential Growth of Electromagnetic Quasinormal Modes","authors":"Tong Wu, José Luis Jaramillo, Philippe Lalanne","doi":"10.1002/lpor.202402133","DOIUrl":"https://doi.org/10.1002/lpor.202402133","url":null,"abstract":"A major research objective across various fields is to represent the response of open systems using quasinormal mode (QNM) expansions, akin to the treatment of normal modes in closed systems. In electromagnetism, QNM expansions effectively describe modal physics inside resonators and in their near field. However, challenges arise in the intermediate and far field, where QNM fields grow exponentially, posing mathematical issues and often being considered unphysical. How can a near-field relevant concept lose its validity? Where does this transition occur? This perspective seeks to answer these questions by analyzing foundational concepts such as cavity perturbation theory and dissipative coupling using model problems. The analysis reveals no fundamental inconsistencies with exponential growth and sometimes yields surprising results, such as an increase in coupling coefficients between QNMs of two distant bodies as separation increases. These findings should be widely shared to prevent misunderstandings and enhance the understanding of contemporary electromagnetic QNM theories. The final section, intended for experts in electromagnetic QNMs, provides a thorough analysis of these theories.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"20 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703598","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":"Sub-Skin-Depth Nanoslit Integrated Topological Insulator Devices for Self-Driven Broadband Terahertz Detection and Imaging","authors":"Shiqi Lan, Li Han, Chenyu Yao, Shijian Tian, Libo Zhang, Mengjie Jiang, Xiaokai Pan, Yingdong Wei, Yichong Zhang, Kaixuan Zhang, Huaizhong Xing, Xiaoshuang Chen, Lin Wang","doi":"10.1002/lpor.202402091","DOIUrl":"https://doi.org/10.1002/lpor.202402091","url":null,"abstract":"The advancement of terahertz technology is primarily fueled by the imperative for room-temperature operation with high sensitivity, high integration, and broadband detection capabilities. Nevertheless, the traditional semiconductor materials in terahertz detectors continue to grapple with obstacles, notably intricate integration and processing complexities. The unique electronic structures and non-trivial topological properties of two-dimensional topological materials bring new possibilities and perspectives for high-performance terahertz low-energy photon detection. Here, an antenna combined with the topological insulator GeBi₄Te₇ and an ultrashort channel integration technique is utilized to significantly enhance the electromagnetic response in a confined region by compressing and localizing the optical field in the spatial dimension. This strategy achieves a preferential flow of hot carriers through enhanced light-matter interactions while satisfying the enhanced bandwidth and response speed of the detector. The sensitivity of the detector is 3.04 A·W⁻¹ at 0.81 THz with a noise equivalent power of less than 15.8 pW·Hz^−0.5 and a response time of less than 5 µs. These research results provide a brand-new opportunity to develop highly sensitive, highly integrated, and broadband terahertz detectors, enabling exploration across a diverse array of application domains.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"13 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703597","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":"Unique Multilayer Gradient Design of Al2O3 Doping Phosphor-In-Glass Film Enabling High-Luminance Laser Lighting","authors":"Zhencheng Li, Jiuzhou Zhao, Yongjie Ding, Hongjin Zhang, Zhenyu Chen, Zhenzi Wu, Yufan Wei, Feng Wu, Changqing Chen, Yang Peng, Jiangnan Dai","doi":"10.1002/lpor.202401991","DOIUrl":"https://doi.org/10.1002/lpor.202401991","url":null,"abstract":"Next-generation high-luminance laser lighting faces a crucial challenge in developing a transmissive color converter with efficient heat dissipation and phosphor conversion. Herein, a unique architecture of Al₂O₃ particles gradient doping phosphor-in-glass film (PiGF) coated on a transparent sapphire (AGD-PiGF@S) is designed and prepared by a simple multilayer printing and low-temperature sintering strategy. By optimizing the multilayer gradient doping structure, the 9-0%AGD-PiGF@S converter enables a high-luminance white light with a high luminous flux (LF) of 2996 lm under a maximum laser power density saturation threshold (LPD-ST) of 19 W mm⁻², which is 2.63 times of the traditional PiGF@S converter with a LF of 1139 lm@11 W mm⁻². The working temperature of this AGD-PiGF@S converter is decreased by 35.8°C@11 W mm⁻² (≈23.82%). Compared with the Al₂O₃ uniform doping PiGF@S (4.5%AUD-PiGF@S) converter, the maximum LF and luminous efficiency (LE) of AGD-PiGF@S are increased by 58.18% and 33.20%, respectively. The findings will provide a new idea for realizing the preferably color converter in high-luminance laser lighting and display.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"183 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695444","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":"Efficient Photothermal and Photocurrent Enhancements in Bi2Te3 Topological Insulator Nanofilm by Integrating with a Photonic Crystal","authors":"Hua Lu, Shouhao Shi, Dikun Li, Shuwen Bo, Jiadeng Zheng, Dong Mao, Yinan Zhang, Xuetao Gan, Jianlin Zhao","doi":"10.1002/lpor.202500033","DOIUrl":"https://doi.org/10.1002/lpor.202500033","url":null,"abstract":"Bismuth telluride (Bi₂Te₃) topological insulator (TI) presents excellent photothermoelectric characteristics with promising applications in photonic detection, catalysis, and sensing. Exploring effective approaches to enhance the photothermal and photocurrent response in the Bi₂Te₃ TI films is particularly significant for improving the photodetection capacity. Herein, the generation of an optical effect analogous to Tamm plasmons is experimentally and numerically demonstrated by integrating the Bi₂Te₃ TI nanofilm onto a 1D photonic crystal (PC). The Bi₂Te₃/PC multilayer enables the distinct enhancement of near-infrared light absorption and photothermal effect of Bi₂Te₃ nanofilm based on the TI-based optical Tamm state. The measured results reveal that the reflection spectrum of Bi₂Te₃ nanofilm on the PC exhibits a distinct dip, whose position has a redshift with increasing the thickness of Bi₂Te₃ film. The numerical and theoretical calculations agree well with the experiments. The reflection dip stems from the formation of the TI-based Tamm state, whose wavelength exhibits a slight blueshift with the increase of temperature. The zero-bias photocurrent conversion of Bi₂Te₃ nanofilm can be obviously self-reinforced with impinging light on the Bi₂Te₃/PC structure at the Tamm state wavelength. The results pave a new avenue for enhancing light-TI interactions and their applications in high-performance near-infrared photodetection devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"61 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695441","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":"Moderate Absorption and Low Scattering: Near-infrared Illumination for Clear Imaging through Highly Turbid Water","authors":"Yiwen Wang, Peiyang Liu, Tianxiang Wu, Zhe Feng, Ying Liu, Jun Qian","doi":"10.1002/lpor.202402067","DOIUrl":"https://doi.org/10.1002/lpor.202402067","url":null,"abstract":"Optical imaging through highly turbid water (<span data-altimg=\"/cms/asset/3dc6264d-c2b2-41a9-98e5-2fa909dd47a9/lpor202402067-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"1\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor202402067-math-0001.png\"><mjx-semantics><mjx-mo data-semantic- data-semantic-role=\"inequality\" data-semantic-speech=\"greater than\" 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:lpor202402067:lpor202402067-math-0001\" display=\"inline\" location=\"graphic/lpor202402067-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mo data-semantic-=\"\" data-semantic-role=\"inequality\" data-semantic-speech=\"greater than\" data-semantic-type=\"relation\">&gt;</mo>$&gt;$</annotation></semantics></math></mjx-assistive-mml></mjx-container>50 NTU) presents significant challenges due to strong photon scattering effect that impedes effective detection of light signal. Using Monte Carlo simulation, it is found that moderate light absorption can improve image quality, while photon scattering is unequivocally detrimental. To achieve clear imaging in highly turbid water, the wavelength of illumination light has been red-shifted from the traditionally utilized blue-green to near-infrared, which has moderate absorption and low scattering. Experimental results demonstrate that near-infrared illumination is helpful to the detection of target while visible illumination causes the loss of target information. This provides a simple optical imaging method for extracting signals from targets in highly turbid water, without the requirement of complex equipment. Furthermore, the negative effect of backscattering background under forward-illumination mode on imaging contrast is confirmed, and the back-illumination mode is proposed to eliminate its interference. Finally, the number and movement of fish are successfully observed in real time through the simulated aquaculture pond, using the near-infrared lateral-illumination, and the research has the potential to be applied in various turbid underwater imaging scenarios.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"57 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695448","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":"Advances of Fluorescence Molecular Imaging: NIR-II Window, Probes, and Tomography","authors":"Fan Song, Peng Zhang, Huijie Wu, Chenbin Ma, Zeyu Liu, Ruxin Cai, Youdan Feng, Yufang He, Xiaoman Dong, Ye Tian, Guanglei Zhang","doi":"10.1002/lpor.202400275","DOIUrl":"https://doi.org/10.1002/lpor.202400275","url":null,"abstract":"Fluorescence molecular imaging (FMI), a promising in vivo non-invasive optical molecular imaging technology, has high sensitivity, specificity, and spatio-temporal resolution. Owing to its further advantages of low cost and no radiation, FMI has been extensively employed in the diagnosis and treatment of tumors, imaging of the vascular system, and guided delivery of drugs. Nonetheless, affected by the strong photon absorption and scattering, FMI faces two major challenges: limited tissue penetration depth and complicated tomography reconstruction. This review clarifies both the challenges of FMI for the first time by summarizing the advances in near-infrared region II (NIR-II) imaging and fluorescence molecular tomography (FMT). In detail, NIR-II imaging conditions, representative probes, FMT systems, and reconstruction algorithms are reviewed. The NIR-II imaging can achieve deeper penetration and higher resolution, which facilitate more accurate reconstruction of FMT. And in turn, precise FMT reconstruction will promote the development and application of NIR-II imaging. Additionally, the challenges for the future development of NIR-II imaging and FMT are deeply analyzed, and the potential improvement avenues are discussed. The strengthening of the methodological investigation of NIR-II FMT is proposed to impel the deeper and more accurate FMI, ultimately providing more effective optical imaging tools for the biomedical field.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"33 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703599","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":"Near-Infrared Quantum Dots for Electroluminescence: Balancing Performance and Sustainability","authors":"Wan-Shan Shen, Ya-Kun Wang, Liang-Sheng Liao","doi":"10.1002/lpor.202401947","DOIUrl":"https://doi.org/10.1002/lpor.202401947","url":null,"abstract":"Near-infrared quantum dots (NIR QDs) show promise in the fields of biomedicine, public health, and optoelectronics. Significant progress has been made in the development of efficient NIR light-emitting diodes (LEDs) through understanding the correlation between QD size and photophysical properties, along with research into QD passivation and device structure optimization. However, challenges remain in achieving long operational lifetime and low environmental hazard, which must be addressed to meet restriction of hazardous substances (RoHS) standards. In this review, the research progress on the synthesis and passivation of NIR QDs, as well as the efficiency and stability of NIR-quantum dot light-emitting diodes (QLEDs) are summarized. This is started with the synthesis and passivation strategies for common toxic and RoHS-compliant nonhazardous NIR QDs, highlighting passivation approaches that enhance photoluminescence quantum yield. Then, the fabrication and performance aspects of NIR QLEDs are investigated and the efficiency and stability of devices using toxic and nontoxic NIR QDs are summarized. Finally, the latest advances are summarized by highlighting the necessary balance between conventional high-performance QDs and more environmentally friendly RoHS-compliant QDs, and the move of focus is discussed to the long-term challenge of combining device performance with environmental sustainability and what needs to do toward this goal.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"57 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143703600","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}