Optics Communications最新文献_第10页

Symmetry-breaking induced optical anisotropy in van der Waals WS2/CrOCl heterostructures van der Waals WS2/CrOCl异质结构中对称破断引起的光学各向异性

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-14 DOI: 10.1016/j.optcom.2025.132317

Xueting Guo , Yuehua Wei , Congbing Tan , Zhiyuan Dou , Hong Zhou , Qianyi Li , Chuanxin Wang , Xiaoming Zheng

{"title":"Symmetry-breaking induced optical anisotropy in van der Waals WS2/CrOCl heterostructures","authors":"Xueting Guo , Yuehua Wei , Congbing Tan , Zhiyuan Dou , Hong Zhou , Qianyi Li , Chuanxin Wang , Xiaoming Zheng","doi":"10.1016/j.optcom.2025.132317","DOIUrl":"10.1016/j.optcom.2025.132317","url":null,"abstract":"<div><div>Polarization detection enhances signal contrast and offers several advantages, including high sensitivity, anti-interference capabilities, multi-dimensional information acquisition, and precise optical measurements. These benefits are particularly significant in the ultraviolet (UV) band, where polarization detection holds vast application potential. Compared to traditional polarized light detectors that rely on components such as polarizers, two-dimensional (2D) materials with low-symmetry crystal structures serve as excellent platforms for polarization detection. WS<sub>2</sub>, a UV-sensitive 2D material, is a promising candidate for UV detection. However, its high-symmetry structure limits its effectiveness in polarization detection. To address this limitation, C<sub>2</sub>-symmetric CrOCl was combined with C<sub>3</sub>-symmetric WS<sub>2</sub> to form a WS<sub>2</sub>/CrOCl heterostructure, which reduced the symmetry of WS<sub>2</sub> and enabled the study of its polarization characteristics. Asymmetry second-harmonic generation (SHG) signals and anisotropic absorption rate were observed in the monolayer WS<sub>2</sub>/CrOCl heterostructure. Significant anisotropic optoelectronic properties caused by anisotropic light absorption rates were further detected. The origin of this anisotropic behavior from the symmetry breaking was indicated by angle-dependent Raman spectroscopy. Thus, using C<sub>2</sub>-symmetric dielectric materials (e.g., CrOCl) to disrupt the C<sub>3</sub> symmetry of monolayer WS<sub>2</sub> represents an effective strategy for interface symmetry engineering. This approach not only modulates the electronic properties of the channel semiconductor but also enables moiré physics at the heterointerface. Moreover, the advantageous polarization properties of this heterostructure hold potential for applications in spatial astronomical UV polarization detection.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"594 ","pages":"Article 132317"},"PeriodicalIF":2.5,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Generation of switchable spatial modes from the Brillouin random fiber laser 布里渊随机光纤激光器可切换空间模式的产生

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-14 DOI: 10.1016/j.optcom.2025.132337

Jialang Zhang , Zhaosheng Chu , Lei Gui , Siyuan Zhang , Qiwen Zhan , Anting Wang

{"title":"Generation of switchable spatial modes from the Brillouin random fiber laser","authors":"Jialang Zhang , Zhaosheng Chu , Lei Gui , Siyuan Zhang , Qiwen Zhan , Anting Wang","doi":"10.1016/j.optcom.2025.132337","DOIUrl":"10.1016/j.optcom.2025.132337","url":null,"abstract":"<div><div>We experimentally demonstrate an all-fiber Brillouin random fiber laser (BRFL) with switchable spatial modes based on a few-mode tilted fiber Bragg grating (FM-TFBG). The tilt angle of the FM-TFBG is set to 1.5° to improve the conversion efficiencies from LP<sub>01</sub> mode to LP<sub>11</sub> or LP<sub>21</sub> mode compared to the non-tilted few-mode fiber Bragg grating. By adjusting the wavelength of the incident Brillouin pump light, the output LP mode can be switched between the LP<sub>01</sub>, LP<sub>11</sub>, LP<sub>21</sub>, and LP<sub>02</sub> modes. By combining the degenerate odd and even LP<sub>lm</sub> modes with ±π/2 phase difference, the output of OAM<sub>+1</sub>, OAM<sub>-1</sub>, OAM<sub>+2</sub>, and OAM<sub>-2</sub> beams can also be obtained. To verify the feature of the spiral phase, fork-shaped fringes resulting from the interference between the generated OAM and the reference parallel beams are recorded. The efficiency of the laser can be optimized by changing the wavelength of the incident BP light. Besides serving as a reference for temporal modulation of spatial modes and optical field control of random fiber lasers, the proposed all-fiber BRFL with switchable spatial modes also has potential applications in imaging, sensing, and communication.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"594 ","pages":"Article 132337"},"PeriodicalIF":2.5,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pulse compression research in a high pulse energy electro-optic Q-switched laser 高脉冲能量电光调q激光器的脉冲压缩研究

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-14 DOI: 10.1016/j.optcom.2025.132325

Zhiqiang Long , Weifeng Zhong , Xiang Wang , Yiheng Yang , Amei Du , Wen Yang , Changhe Sun , Yingjie Shen , Ruijun Lan

{"title":"Pulse compression research in a high pulse energy electro-optic Q-switched laser","authors":"Zhiqiang Long , Weifeng Zhong , Xiang Wang , Yiheng Yang , Amei Du , Wen Yang , Changhe Sun , Yingjie Shen , Ruijun Lan","doi":"10.1016/j.optcom.2025.132325","DOIUrl":"10.1016/j.optcom.2025.132325","url":null,"abstract":"<div><div>A high-energy electro-optical Q-switched Nd:YAG laser with pulse width less than 10 ns has been demonstrated with the potassium dideuterium phosphate crystal as the electro-optical Q-switched crystal. The excellent conversion performance has been verified for the pump source with an electro-to-optical conversion efficiency of 50.1 %, while an optical-to-optical conversion of 20.3 % was obtained under electro-optical operation. Under different electro-optical pump conditions, the maximum single pulse energy and the corresponding pulse width were measured as 80.7 mJ and 12.8 ns, respectively. The pulse compression is achieved by simply inserting an extra saturable absorber into the linear cavity without changing other cavity parameters. The shortest pulse width is reduced to 9.4 ns, and under that circumstance the pulse waveform exhibits improved temporal symmetry. To the best of our knowledge, this is the first demonstration of pulse compression and waveform enhancement at the sub-hundred-mJ energy level, which is expected to advance high-precision laser processing, medical aesthetics, and laser spectroscopy.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"595 ","pages":"Article 132325"},"PeriodicalIF":2.5,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144908096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Self-feedback weak measurement for highly-sensitive, wide-range phase detection 用于高灵敏度、宽量程相位检测的自反馈弱测量

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-14 DOI: 10.1016/j.optcom.2025.132288

Hexiang Li , Wanshou Sun , Weiqian Zhao , Zifu Su , Yafei Yu , Jindong Wang

引用次数: 0

Development of an ultrawide-band modeless Ce:LiCAF ultraviolet laser for SO2 detection using differential optical absorption spectroscopy 超宽带无模态Ce:LiCAF紫外激光器的研制及应用

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-13 DOI: 10.1016/j.optcom.2025.132323

Quan Minh Le , Tu Xuan Nguyen , Diep Van Nguyen , Kieu Anh Thi Doan , Bich Thi Vu , Anh Le Ngoc , Minh Hong Pham , Nobuhiko Sarukura , Hung Nguyen Dai

{"title":"Development of an ultrawide-band modeless Ce:LiCAF ultraviolet laser for SO2 detection using differential optical absorption spectroscopy","authors":"Quan Minh Le , Tu Xuan Nguyen , Diep Van Nguyen , Kieu Anh Thi Doan , Bich Thi Vu , Anh Le Ngoc , Minh Hong Pham , Nobuhiko Sarukura , Hung Nguyen Dai","doi":"10.1016/j.optcom.2025.132323","DOIUrl":"10.1016/j.optcom.2025.132323","url":null,"abstract":"<div><div>In this work, we present experimental results on the development of an ultrawide-band ultraviolet solid-state laser using a Ce:LiCAF crystal. The pumping source is the fourth harmonic (266 nm) of a Lotis Nd:YAG laser, operating at a repetition rate of 10 Hz, and pulse duration of 7 ns. By direct amplification of the Ce:LiCAF fluorescence, a spectrally ultrawide emission ranging from 275 nm to 330 nm, and a power of 2 mW can be achieved. The use of this laser source in the differential optical absorption spectroscopy (DOAS) system to investigate the concentration of sulfur dioxide (SO<sub>2</sub>) pollution gas has been performed. The obtained results demonstrate that the developed DOAS system was able to measure trace SO<sub>2</sub> with ±2 % accuracy, well within the ppm accuracy specified by the gas mixture vendor. The successful development paves the way for various environmental applications, particularly in trace-gas detection and atmospheric research.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"594 ","pages":"Article 132323"},"PeriodicalIF":2.5,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144880336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Efficient parametric amplification via enhancing the seed pulse energy 有效的参数放大通过增强种子脉冲能量

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-13 DOI: 10.1016/j.optcom.2025.132324

Chaolu Yuan , Zhe Yu , Rui Zhang , Zhaowei Zhang

引用次数: 0

High-efficiency photonic spin Hall effect via Brewster angle-enhanced in an all-dielectric metasurface 全介电超表面上经布鲁斯特角增强的高效光子自旋霍尔效应

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-13 DOI: 10.1016/j.optcom.2025.132322

Yintao Tang, Yingshuang Huang, Hongyun Li, Changye Feng, Dacheng Zou, Yuxin Yang, Bo Lu, Tiesheng Wu

{"title":"High-efficiency photonic spin Hall effect via Brewster angle-enhanced in an all-dielectric metasurface","authors":"Yintao Tang, Yingshuang Huang, Hongyun Li, Changye Feng, Dacheng Zou, Yuxin Yang, Bo Lu, Tiesheng Wu","doi":"10.1016/j.optcom.2025.132322","DOIUrl":"10.1016/j.optcom.2025.132322","url":null,"abstract":"<div><div>We propose and numerically demonstrate an all-dielectric metasurface that excites the photon Hall spin effect with GaAs as the constituent material. The alteration of refractive index enables light propagation in inhomogeneous media, inducing mutual separation of photons with opposite spin angular momentum. This results in spin-dependent light splitting and the emergence of the photonic Hall spin effect. Using finite element method simulations, we analyze the distinct characteristics of the photonic Hall spin effect intensity under horizontal and vertical polarization conditions, particularly identifying enhanced effect strength under specific configurations. Simulation results demonstrate that when implementing GaAs cuboid pillars with a 300 nm periodicity and 150 nm lateral dimensions, the presented design achieves Photonic Hall spin effect intensity modulation under vertical polarization light with the incidence angle range of 0∼52.7°. Approximately 50° angular range for intensity adjustment under horizontal polarization light. These findings realize substantial lateral spin displacements within defined angular ranges for both polarization states, thereby enabling effective regulation of the photonic Hall spin effect. Various cases, including wavelength and structural parameters dependencies, are thoroughly investigated to enhance the photonic Hall spin effect. Such a simple structure may provide a platform for various functional spin-based photonic devices.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"594 ","pages":"Article 132322"},"PeriodicalIF":2.5,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Material removal and thermal damage suppression mechanism of NiTi shape memory alloys by Waterjet-Assisted Laser Etching 水射流辅助激光刻蚀NiTi形状记忆合金的材料去除及热损伤抑制机理

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-13 DOI: 10.1016/j.optcom.2025.132319

Yonggang Hou , Mengyuan Zhou , Lunye Sun , Chenlong Li , Jiaqi Wang , Tao Ni

{"title":"Material removal and thermal damage suppression mechanism of NiTi shape memory alloys by Waterjet-Assisted Laser Etching","authors":"Yonggang Hou , Mengyuan Zhou , Lunye Sun , Chenlong Li , Jiaqi Wang , Tao Ni","doi":"10.1016/j.optcom.2025.132319","DOIUrl":"10.1016/j.optcom.2025.132319","url":null,"abstract":"<div><div>To address issues such as thermal damage in NiTi shape memory alloys (NiTi-SMAs) laser processing, this study introduces Waterjet-Assisted Laser Etching (WJALE) technology. An improved two-dimensional Multiphysics coupling model, based on the two-phase flow level set method, was constructed to simulate dynamic processes including melt pool evolution, recast layer (RL) formation, heat-affected zone (HAZ) expansion. Comparison between simulation and experimental results showed that the model accurately predicted the geometry of both pits and grooves, with maximum relative errors in less than 7.5 % and 14.3 % for pit depth and diameter, respectively, and less than 15.9 % and 14.9 % for groove depth and width, respectively. The results further demonstrate that increasing laser power and pulse frequency markedly increases pit depth and diameter, while in groove processing, increasing scanning speed reduces energy density, leading to smaller melt pool size and HAZ. During processing, the waterjet rapidly removes molten material and debris via high-speed flushing and provides dynamic cooling, which reduces heat accumulation. Orthogonal experiments and variance analysis on groove machining revealed that laser power is the dominant factor affecting RL and HAZ, while scanning speed has the least influence. Compared to Conventional Laser Etching (CLE), WJALE significantly suppresses oxidation product formation and decreases debris splashing, significantly enhancing the overall machining quality. This research provides a theoretical foundation and process optimization guidance for the microstructural manufacturing of NiTi-SMAs.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"594 ","pages":"Article 132319"},"PeriodicalIF":2.5,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dual-polarization compatible and high-efficiency metasurface optical phased array based on Sb2S3 基于Sb2S3的双偏振兼容高效超表面光学相控阵

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-12 DOI: 10.1016/j.optcom.2025.132309

Jie Li , Chen Liu , Tingting Tang , Xiao Liang , Hao Gu , Leling Chen , Lixin Sun , Hongwei Jin , Chengxi Cao

{"title":"Dual-polarization compatible and high-efficiency metasurface optical phased array based on Sb2S3","authors":"Jie Li , Chen Liu , Tingting Tang , Xiao Liang , Hao Gu , Leling Chen , Lixin Sun , Hongwei Jin , Chengxi Cao","doi":"10.1016/j.optcom.2025.132309","DOIUrl":"10.1016/j.optcom.2025.132309","url":null,"abstract":"<div><div>Mechanical scanning Lidar systems are commonly limited by slow speeds and environmental adaptability. Conversely, non-mechanical systems such as Optical Phased Arrays (OPA), featuring all-solid-state architectures that are convenient for electrical control and show significantly improved speed. However, among them, the metasurface phased arrays for beam control still face the problem of low reflection efficiency and are restricted to a single polarization response, thus stay away from high-efficiency and polarization-adaptive applications. Here, we propose a metasurface phased array based on low loss phase-change material Sb<sub>2</sub>S<sub>3</sub> and a new meta-structure. The device exhibits higher reflection efficiency and dynamically steers beams of orthogonal linear polarizations simultaneously, with scan angles averaging around 40°. For x- and y-polarized beams, large phase shifts of 221°, 239° and high reflection efficiencies of 47.38 %, 53.43 % are obtained, respectively. This design not only achieves dual-polarization scanning, large steer angles, but also shows high reflectance efficiency, and may be extended to other electromagnetic bands. Moreover, the precise control of polarization and phase by this metasurface can enhance the performance and environmental adaptability of Lidar systems. This offers new possibilities for atmospheric sensing, space communication, and related fields.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"593 ","pages":"Article 132309"},"PeriodicalIF":2.5,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Tip-enhanced Raman spectroscopy of wrinkle-induced strain in layered topological insulator Ta2Ni3Te5 层状拓扑绝缘体Ta2Ni3Te5中起皱应变的尖端增强拉曼光谱

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2025-08-12 DOI: 10.1016/j.optcom.2025.132314

Dylan A. Jeff , Kamal Harrison , Jonathan M. DeStefano , Olivia Peek , Jiun-Haw Chu , Saiful I. Khondaker

{"title":"Tip-enhanced Raman spectroscopy of wrinkle-induced strain in layered topological insulator Ta2Ni3Te5","authors":"Dylan A. Jeff , Kamal Harrison , Jonathan M. DeStefano , Olivia Peek , Jiun-Haw Chu , Saiful I. Khondaker","doi":"10.1016/j.optcom.2025.132314","DOIUrl":"10.1016/j.optcom.2025.132314","url":null,"abstract":"<div><div>Ta<sub>2</sub>Ni<sub>3</sub>Te<sub>5</sub> is a layered quantum material with significant potential in conventional and quantum electronic devices due to its structural anisotropy and two-dimensional topologically insulating phase in monolayer. Strain engineering is considered to be an effective method of manipulating physical properties of layered quantum materials, such as the observation of a pressure-induced topological phase transition in Ta<sub>2</sub>Ni<sub>3</sub>Te<sub>5</sub>. In this study, we examined the influence of wrinkle induced strain on the Raman active phonon modes of few-layer Ta<sub>2</sub>Ni<sub>3</sub>Te<sub>5</sub> exfoliated on gold investigated via tip-enhanced Raman spectroscopy (TERS). To achieve the near-field TERS enhancement, plasmonic interactions were induced using a gold-coated cantilever in gap-mode configuration. We show that the material's phonon modes undergo changes in intensity and frequency downshifts as a result of the changes in lattice geometry caused by the wrinkles and the localized strain they induce. Due to the TERS enhancement, we also observed the signature of a phonon mode near 250 cm<sup>−1</sup> which had not been previously reported. Finally, we report the characterization of the Raman-active phonon modes of a monolayer Ta<sub>2</sub>Ni<sub>3</sub>Te<sub>5</sub> sample.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"593 ","pages":"Article 132314"},"PeriodicalIF":2.5,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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