Optics Communications最新文献_第9页

All-dielectric metasurface based on particle swarm optimization algorithm for generating high-purity vortex pulses 基于粒子群优化算法的高纯度涡旋脉冲全介质超表面

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-28 DOI: 10.1016/j.optcom.2025.131812

Jianghong Xu , Huan Yuan , Zheqiang Zhong , Bin Zhang

引用次数: 0

Wavelength-dependent nonlinear optical properties of hexagonal gold nanoparticles and its application in pulsed lasers 六方金纳米粒子随波长变化的非线性光学特性及其在脉冲激光器中的应用

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-27 DOI: 10.1016/j.optcom.2025.131808

Yayuan Tang, Zehua Li, Zuyong Gao

引用次数: 0

High-dimensional Orbital Angular Momentum Communication of Perfect Vortex Beam Based on Demultiplexing of Microlens Array with sector sub-aperture 基于扇形子孔径微透镜阵列解复用的完美涡旋光束高维轨道角动量通信

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-27 DOI: 10.1016/j.optcom.2025.131762

Fan Wu , Ao Tang , Zhijie Pan, Feng Shen

{"title":"High-dimensional Orbital Angular Momentum Communication of Perfect Vortex Beam Based on Demultiplexing of Microlens Array with sector sub-aperture","authors":"Fan Wu , Ao Tang , Zhijie Pan, Feng Shen","doi":"10.1016/j.optcom.2025.131762","DOIUrl":"10.1016/j.optcom.2025.131762","url":null,"abstract":"<div><div>The Perfect Vortex Beam (PVB) exhibits a consistent ring radius across different Orbital Angular Momentum (OAM) modes, this unique characteristic endows the PVB has excellent application prospects in the free-space optical communication field, etc. In this paper, we experimentally demonstrate a high-dimensional OAM communication method using PVB for encoding, and demultiplexing via a microlens array with sector sub-aperture(MLA-S). At the transmitter, multiple PVB with different radii and modes are superimposed to achieve high-dimensional information encoding. At the receiver, an MLA-S is employed for decoding, which the circularly symmetric structure effectively matches the helical phase. This device can simultaneously measure multiple OAM modes at different spatial positions. And compared to using only the OAM modulation, this method can encode more information by utilizing fewer modes. Meanwhile, the OAM decoding device has high measurement accuracy, and a large measurement range without complex image processing. Therefore, this work has promising applications in high-capacity spatial optical communication and mode recognition.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131762"},"PeriodicalIF":2.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747288","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

External cavity second-Stokes Raman laser based on potassium yttrium tungstate (KYW) crystal 基于钨酸钇钾（KYW）晶体的外腔二次斯托克斯拉曼激光器

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-27 DOI: 10.1016/j.optcom.2025.131806

Guorui Lv , Lei Guo , Haiping Xu , Xian-An Dou , Qing Ye , Hui Kong , Yaling Yang , Jintian Bian , Nanxiang Zhao , Zefeng Wang , Kejian Yang , Jianjun Zhang

{"title":"External cavity second-Stokes Raman laser based on potassium yttrium tungstate (KYW) crystal","authors":"Guorui Lv , Lei Guo , Haiping Xu , Xian-An Dou , Qing Ye , Hui Kong , Yaling Yang , Jintian Bian , Nanxiang Zhao , Zefeng Wang , Kejian Yang , Jianjun Zhang","doi":"10.1016/j.optcom.2025.131806","DOIUrl":"10.1016/j.optcom.2025.131806","url":null,"abstract":"<div><div>We present an external-cavity potassium yttrium tungstate (KYW) second-Stokes Raman laser with strong pulse compression capability. A linearly polarized 1064 nm Nd:YAG laser is used as the pump source with a pulse width of 236 ns and a repetition frequency of 10 kHz. Under the maximum pump power of 22 W, the Stokes output power of 1.06 W is obtained at 1318 nm with a slope efficiency of 8.5 %, and the corresponding pulse width is reduced to 24 ns with a compression ratio of ∼10. And the generation process of second-Stokes pulse is simulated theoretically based on the steady-state stimulated Raman coupled wave theory. As far as we know, this is the first watt-level second-Stokes Raman laser based on KYW crystal. In addition, the cross-cascade mechanism of second-Stokes is studied among 905 cm<sup>−1</sup>, 765 cm<sup>−1</sup> and 87 cm<sup>−1</sup> modes, which demonstrates the potential of KYW crystal in multi-wavelength Raman lasers.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131806"},"PeriodicalIF":2.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747292","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

Binary increment operation using CRSOA-MZI switches 二进制增量操作使用CRSOA-MZI开关

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-26 DOI: 10.1016/j.optcom.2025.131800

Tanay Chattopadhyay , Dilip Kumar Gayen

引用次数: 0

MXene-based hybrid plasmonic waveguide by inserting low refractive index layer for long-range propagation 基于mxene的低折射率混合等离子体波导

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-25 DOI: 10.1016/j.optcom.2025.131764

Ruozhang Xing, Xiujuan Zou, Jing Chen

{"title":"MXene-based hybrid plasmonic waveguide by inserting low refractive index layer for long-range propagation","authors":"Ruozhang Xing, Xiujuan Zou, Jing Chen","doi":"10.1016/j.optcom.2025.131764","DOIUrl":"10.1016/j.optcom.2025.131764","url":null,"abstract":"<div><div>The unique plasmonic properties of MXene in the near-infrared region have attracted increasing attention, but the surface plasmons of MXene still face problems of poor confinement and large propagation loss. In this work, an MXene hybrid planar waveguide at the communication wavelength was proposed by inserting a low refractive index layer beneath the MXene materials. The introduction of this low refractive index dielectric layer (SiO<sub>2</sub>) can dramatically expand the propagation distance and improve the localization of the electric field. When the thickness of SiO<sub>2</sub> is only 20 nm, the propagation distance can be increased to over <span><math><mrow><mn>10</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>, which is 100 times that of MXene waveguides without SiO<sub>2</sub> layers. MXene hybrid plasmonic waveguides are competitive compared to other typical plasmonic waveguides, such as Au, Ag, and graphene at the wavelength of <span><math><mrow><mn>1</mn><mo>.</mo><mn>55</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>. The silicon-on-insulator (SOI)-based MXene hybrid plasmonic waveguide was further designed. By optimizing the structure, the figure of merit has risen by an order of magnitude in contrast to MXene waveguide structures. These findings will contribute to the practical application and development of MXene surface plasmonic components.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131764"},"PeriodicalIF":2.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715456","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

Helicity density of higher-order Poincaré beams in tight focus 高阶庞卡罗光束在紧密聚焦下的螺旋密度

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-25 DOI: 10.1016/j.optcom.2025.131803

S.S. Stafeev , V.D. Zaitsev , V.V. Kotlyar

引用次数: 0

Broadband high-resolution line-imaging spectrometer with a large working distance range 宽带高分辨率线成像光谱仪，工作距离范围大

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-25 DOI: 10.1016/j.optcom.2025.131802

Qinghua Yang

{"title":"Broadband high-resolution line-imaging spectrometer with a large working distance range","authors":"Qinghua Yang","doi":"10.1016/j.optcom.2025.131802","DOIUrl":"10.1016/j.optcom.2025.131802","url":null,"abstract":"<div><div>A broadband high-resolution line-imaging spectrometer (<strong>BHLIS</strong>) is presented, which consists of only two identical linear microlens arrays, one linear stop array, one parallel planar transmission grating pair and one area array detector. The detector is divided into many small rectangular pixel arrays, each corresponding to one calculated wavelength and one target unit. The BHLIS can achieve high spectral resolution (of the order of 1 nm) over a broadband wavelength range (e.g. 250 nm–380 nm, or 400 nm–700 nm) in the ultraviolet–visible spectral region. For existing imaging spectrometers, the angular resolution does not vary with the measuring distance, but the larger the measuring distance, the lower the spatial resolution. However, for all measuring distances over a large working distance range, the spatial resolution in the vertical direction of the BHLIS is approximately equal to the aperture size of a microlens, and the spatial resolution in the horizontal direction of the BHLIS is approximately equal to the distance between the centers of two adjacent microlenses in a linear microlens array. Since the aperture size of a microlens can be very small (e.g. 0.32 mm, 0.2 mm, or smaller) and the corresponding distance between the centers of two adjacent microlenses in a linear microlens array can be very small (e.g. 0.36 mm, 0.24 mm, or smaller), the BHLIS can obtain a high spatial resolution. The BHLIS is a unique concept that uses only one frame of data to obtain both broadband fine spectra (in the ultraviolet–visible spectral region) and high-resolution spatial images of a target row over a large working distance range.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131802"},"PeriodicalIF":2.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715516","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

Mitigating thermal blooming effect of the atmosphere using time-dependent rotationally-symmetric power-exponent-phase vortex beam 利用时变旋转对称功率指数相位涡旋光束缓解大气热晕效应

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-25 DOI: 10.1016/j.optcom.2025.131804

Fangcheng Yan , Mingming Zhang , Jie Xu , Shengchuang Bai , Jun Liu , Youyou Hu

{"title":"Mitigating thermal blooming effect of the atmosphere using time-dependent rotationally-symmetric power-exponent-phase vortex beam","authors":"Fangcheng Yan , Mingming Zhang , Jie Xu , Shengchuang Bai , Jun Liu , Youyou Hu","doi":"10.1016/j.optcom.2025.131804","DOIUrl":"10.1016/j.optcom.2025.131804","url":null,"abstract":"<div><div>The thermal blooming effect induced by high-power laser beams propagating through the atmosphere can result in a degradation of beam quality. This article proposes the utilization of time-dependent rotationally-symmetric power-exponent-phase vortex beam (TDRSPEPVB) as a means to mitigate thermal blooming effect during propagation in the atmosphere. Firstly, TDRSPEPVB is obtained by introducing a time factor into the phase term of rotationally-symmetric power-exponent-phase vortex beam (RSPEPVB). A comparative analysis was conducted on the thermal blooming effects of TDRSPEPVB and RSPEPVB in the atmosphere. The results indicate that TDRSPEPVB exhibits superior anti-thermal blooming ability compared to RSPEPVB and better preserves the shape of light spots during propagation through the atmosphere. These findings suggest that rotational motion can effectively mitigate thermal blooming effect for petal-like shaped high-order mode beams, providing valuable guidance for their application in atmospheric conditions.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131804"},"PeriodicalIF":2.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715452","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

Fast prediction on the transmission of conical conformal frequency selective surfaces based on fully connected networks 基于全连通网络的锥形共形频率选择曲面传输的快速预测

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-03-24 DOI: 10.1016/j.optcom.2025.131797

Yong Hu , Kexin Wen , Jiajun Zhang , Weijie Shi , Jiaqi Li , Weibing Lu

{"title":"Fast prediction on the transmission of conical conformal frequency selective surfaces based on fully connected networks","authors":"Yong Hu , Kexin Wen , Jiajun Zhang , Weijie Shi , Jiaqi Li , Weibing Lu","doi":"10.1016/j.optcom.2025.131797","DOIUrl":"10.1016/j.optcom.2025.131797","url":null,"abstract":"<div><div>Frequency Selective Surfaces (FSS) have significant applications in Near-field Enhancement and Radar Cross-Section (RCS) reduction. In practical applications, to accommodate carriers with complex shapes, FSS should work as the conformal shape rather than a planar shape. Typically, the Conformal Frequency Selective Surfaces (CFSS) are complex structures, the physical mechanisms within this system are complicated and the simulation for the electromagnetic properties are high time-consumed, giving a challenge for fast analysis and designs of the CFSS. In this study, the physical mechanism of a conical CFSS with Y-shaped holes is studied, including incident angle, polarization, array size and curvature. Furthermore, a dataset comprising 160 transmission curves has been built and a Fully Connected Network (FCN) is employed to predict the transmission of conical CFSS, with an average absolute deviation less than 0.02. Besides, utilized with Gradient Descent algorithm (GD) and FCN, a CFSS exhibiting high transmission within the frequency range of 14.50–15.00 GHz has been designed. This work realizes rapid analysis and design of CFSS with much fewer time and computing resources compared to methods based on full-wave simulations, opening new possibilities in fast design of the CFSS.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"583 ","pages":"Article 131797"},"PeriodicalIF":2.2,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747389","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