Optical Review最新文献_第2页

Digitally directed beams for microscale inspection 用于微尺度检测的数字定向光束

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-24 DOI: 10.1007/s10043-025-00965-0

Hiroshi Ohno

引用次数: 0

Photoelectron momentum distributions of hydrogen atoms using parallel two-color chirped laser pulses 利用平行双色啁啾激光脉冲研究氢原子的光电子动量分布

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-13 DOI: 10.1007/s10043-025-00971-2

Si-Fan Wang, Bing Liu, Wei-Wei Yu

{"title":"Photoelectron momentum distributions of hydrogen atoms using parallel two-color chirped laser pulses","authors":"Si-Fan Wang, Bing Liu, Wei-Wei Yu","doi":"10.1007/s10043-025-00971-2","DOIUrl":"https://doi.org/10.1007/s10043-025-00971-2","url":null,"abstract":"We investigate the photoelectron momentum distributions (PEMDs) of hydrogen atoms ionized by a parallel two-color chirped laser field, employing the semi-classical two-step model (SCTS). By modulating the chirp parameter and adjusting the ionization time offset on the attosecond timescale, we demonstrate the ability to control electronic interference across different orbitals. We present PEMDs images obtained over a single time window to explore the electron momentum dynamics, and analyze the classical trajectories to uncover the underlying interference mechanisms. Furthermore, we show the significant impact of the carrier-envelope phase (CEP) on the PEMDs. Offering a novel approach for controlling electron dynamics with attosecond precision, these findings have potential applications in attosecond imaging, ultrafast spectroscopy, and quantum control. In particular, the possibility of manipulating electron interference is opened, which paves the way for investigating electron dynamics in atoms and molecules on ultrafast timescales, with far-reaching implications for quantum information processing, ultrafast chemistry, and advanced spectroscopic techniques.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"75 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Reflection and refraction of an electromagnetic wave by a superconductor 超导体对电磁波的反射和折射

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-13 DOI: 10.1007/s10043-025-00968-x

Koichi Katsumata

{"title":"Reflection and refraction of an electromagnetic wave by a superconductor","authors":"Koichi Katsumata","doi":"10.1007/s10043-025-00968-x","DOIUrl":"https://doi.org/10.1007/s10043-025-00968-x","url":null,"abstract":"A rigorous treatment of the reflection and transmission of an electromagnetic wave by a superconductor in its ground state is reported. Starting from Maxwell’s equations, a calculation on the reflection and refraction at the interface between a metallic and superconducting plate is made. For the metal, a complex conductivity (sigma ^{textrm{Re}} + isigma ^{textrm{Im}}) derived from the Drude-Zener treatment of the conduction electrons, while for the superconductor the London equation is incorporated into the equations. Thereafter, we consider the case when the first medium is either helium atmosphere or vacuum by setting the dielectric constant and magnetic permeability to unity, and by taking the limit (sigma ^{textrm{Re}} rightarrow 0) and (sigma ^{textrm{Im}} rightarrow 0). The reflection and transmission coefficients thus obtained are, 1.00 and 2.00, respectively over a wide frequency range from 10 GHz to 1 THz for the case when the magnetic field of the wave ({varvec{H}}) is perpendicular to the plane of incidence. The coefficients when ({varvec{H}}) lies in the plane of incidence are also calculated. These findings are discussed in relation to total reflection.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"60 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143827685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

All-dielectric metasurface tunable refractive index sensor based on asymmetric dimers with high-quality factor 基于高质量因数非对称二聚体的全介质超表面可调折射率传感器

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-12 DOI: 10.1007/s10043-025-00963-2

Ruiqing Cao, Xinye Fan, Yanling Wang, Wenjing Fang, Wenqian Wei, Yingxin Yin, Xin Wei, Chuanchuan Li, Jifang Tao, Santosh Kumar

{"title":"All-dielectric metasurface tunable refractive index sensor based on asymmetric dimers with high-quality factor","authors":"Ruiqing Cao, Xinye Fan, Yanling Wang, Wenjing Fang, Wenqian Wei, Yingxin Yin, Xin Wei, Chuanchuan Li, Jifang Tao, Santosh Kumar","doi":"10.1007/s10043-025-00963-2","DOIUrl":"https://doi.org/10.1007/s10043-025-00963-2","url":null,"abstract":"In this paper, an all-dielectric metasurface refractive index sensor based on Fano resonance is proposed. The unit structure consists of two silicon ellipsoidal columns with rectangular holes deposited on a silicon dioxide substrate. Based on the theory of bound states in the continuum (BIC), the transition from BIC to quasi-bound states in the continuum (QBIC) can be achieved by modifying the tilting angle of the elliptic column, thereby enabling the excitation of the sharp Fano resonance at 1183.7 nm and 1298.54 nm wavelengths, which in turn yields a maximum quality factor (Q-factor) of 15,575. The near-field distribution indicates that both QBICs are predominantly governed by magnetic dipole (MD) modes. Furthermore, the refractive index sensing performance of the metasurface structure is analyzed by varying the refractive index of the surrounding ambient medium, resulting in a maximum sensitivity (S) of 563 nm/RIU. The sensing characteristics of the structure for seawater temperature and salinity are subsequently investigated, and the maximum sensitivities are determined to be 52 pm/K and 0.265 nm/‰, which demonstrated excellent sensing performance. The proposed metasurface structure has a wide range of potential applications in fields, such as biosensing, optical switching, marine environment monitoring and sensing, and more.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"15 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

SIMNet: an infrared image action recognition network based on similarity evaluation SIMNet：基于相似度评价的红外图像动作识别网络

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-04-07 DOI: 10.1007/s10043-025-00967-y

Shuai Yuan, Lei Yu, Tian Yao, Tianya Mao, Wen Xie, Jiajie Wang

{"title":"SIMNet: an infrared image action recognition network based on similarity evaluation","authors":"Shuai Yuan, Lei Yu, Tian Yao, Tianya Mao, Wen Xie, Jiajie Wang","doi":"10.1007/s10043-025-00967-y","DOIUrl":"https://doi.org/10.1007/s10043-025-00967-y","url":null,"abstract":"Infrared sensors are widely used in human action recognition because of their low light influence and excellent privacy protection. However, the traditional deep learning networks and training or testing methods tend to fall into the trap of local optimum because of the similarity between infrared image classes and the lack of discriminative features such as texture and depth, and thus obtain poor recognition results. To address this issue, we propose a novel human action recognition method based on similarity evaluation. This method innovatively transforms the traditional training and testing (verification) mode. First, we use a feature-to-feature training method to make the network pay more attention to the behavioral information that distinguishes the classes. Second, we design a Integrate Channel Attention Module(ICA) to enable Siamese network to focus on the areas of interest. Finally, we propose the Multimodal Similarity Evaluation Module (MSE). The module aims to address the fuzzy matching problem of feature areas. The contrast experiment results show that our method outperforms existing mainstream methods on several benchmark datasets. The excellent accuracy provides an innovative method for addressing various problems related to high similarity between classes.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"34 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Performance analysis of LDPC decoding algorithm based on PPM modulation for UWOC system under turbulent channel 湍流信道下基于PPM调制的UWOC系统LDPC译码算法性能分析

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-03-27 DOI: 10.1007/s10043-025-00955-2

Feng Ji, Da-Shuai Wang, Le Wang, Shou-Feng Tong

引用次数: 0

Inverted signal-frequency detection and velocity measurement by self-coupling laser sensor array using modulation frequency difference 利用调制频差的自耦合激光传感器阵列进行反信号频率检测和速度测量

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-03-19 DOI: 10.1007/s10043-025-00953-4

Daiki Sato, Daisuke Mizushima, Norio Tsuda

{"title":"Inverted signal-frequency detection and velocity measurement by self-coupling laser sensor array using modulation frequency difference","authors":"Daiki Sato, Daisuke Mizushima, Norio Tsuda","doi":"10.1007/s10043-025-00953-4","DOIUrl":"https://doi.org/10.1007/s10043-025-00953-4","url":null,"abstract":"In this paper, we report the theory of a self-coupling laser sensor array system for improving the signal-frequency inversion problem and the results of velocity measurements with this system. A self-coupling laser sensor is an interferometer that uses optical beats produced by the interference between the light returned from the laser target and the light in the active layer of the laser diode. Using wavelength modulation, this system can simultaneously measure multiple metrological quantities, such as the absolute distance to a target and velocity of a target. However, in a self-coupling laser sensor using wavelength modulation, the signal frequency is inverted and becomes negative if the Doppler shift of the returned light owing to the movement of the target is larger than the signal frequency when the target is stopped. In this case, it is impossible to detect the positive or negative value of the signal directly, resulting in a large measurement error. This has been regarded as a problem that limits the measurement dynamic range of the modulated self-coupling laser sensors. In this study, we propose a system to accurately detect the signal-frequency inversion and improve the measurement dynamic range. The proposed system detects the positive or negative value of the signal frequency from the relationship between the velocity and signal frequency obtained by irradiating multiple beams with different modulation frequencies and then recalculates the accurate measurement value. The measurement results reveal that this system can accurately measure the moving velocity of a target, even when the signal frequency is inverted.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"16 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Through-focus scanning re-radiance simulation for semiconductor inspection system development 用于半导体检测系统开发的通焦扫描再辐射模拟

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-03-19 DOI: 10.1007/s10043-025-00959-y

Byeongjoon Jeong, Heejoo Choi, Daewook Kim, Youngsik Kim

引用次数: 0

Inhomogeneous birefringence analysis using a tensor-valued backprojection 使用张量值反投影的非齐次双折射分析

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-03-19 DOI: 10.1007/s10043-025-00954-3

Masafumi Seigo, Hidetoshi Fukui, Shogo Kawano, Meredith Kupinski

{"title":"Inhomogeneous birefringence analysis using a tensor-valued backprojection","authors":"Masafumi Seigo, Hidetoshi Fukui, Shogo Kawano, Meredith Kupinski","doi":"10.1007/s10043-025-00954-3","DOIUrl":"https://doi.org/10.1007/s10043-025-00954-3","url":null,"abstract":"Injection-molded lenses have an inhomogeneous stress-induced birefringence that can degrade optical performance. This paper presents a new approach for measuring and analyzing inhomogeneous anisotropic samples. The birefringence distribution is characterized by 3D index ellipsoids, and a tomographic reconstruction of this 3D distribution is developed from a linear line projection relationship between the spatially varying index ellipsoids and tomographic polarimetry. This forward representation enables a tensor-valued backprojection for reconstructing the birefringence distribution of an inhomogeneous anisotropic sample. In this approach, each index ellipsoid is represented by a Hermitian matrix, and the 3D birefringence distribution is defined as the distribution of these matrices. This paper is centered on the introduction of the fundamental algorithm and the presentation of a general solution by applying the Radon transform and the backprojection to a tensor field, without requiring specific parameters such as stress fields. Consequently, the computational approach presented in this paper demonstrates that, using 60 tomographic views, reconstruction errors for parameters that characterize spatially varying index ellipsoids remain less than 5%. Here, the error is defined as the ratio of reconstruction variation to the respective maximum values of the original distributions.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"56 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Deep-learning-assisted single-shot 3D shape and color measurement using color fringe projection profilometry 使用彩色条纹投影轮廓术的深度学习辅助单镜头3D形状和颜色测量

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-03-17 DOI: 10.1007/s10043-025-00962-3

Kanami Ikeda, Takahiro Usuki, Yumi Kurita, Yuya Matsueda, Osanori Koyama, Makoto Yamada

引用次数: 0