Optical Review最新文献_第10页

Methods for reducing failure of spaceborne quasi-absolute optical encoder caused by oil contamination 减少机载准绝对式光栅因油污染而失效的方法

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-22 DOI: 10.1007/s10043-024-00876-6

{"title":"Methods for reducing failure of spaceborne quasi-absolute optical encoder caused by oil contamination","authors":"","doi":"10.1007/s10043-024-00876-6","DOIUrl":"https://doi.org/10.1007/s10043-024-00876-6","url":null,"abstract":"<h3>Abstract</h3> <p>Oil contamination has a detrimental influence on the spaceborne quasi-absolute optical encoder because it introduces errors in angular displacement measurement. To reduce these errors and prevent the failure of the spaceborne quasi-absolute optical encoder caused by oil contamination, this paper proposes a multi-reference identification algorithm for the absolute angular displacement and a multi-reading-head data fusion algorithm. First, the composition of the spaceborne quasi-absolute optical encoder and the design of the processing circuit are introduced. Second, a multi-reference identification algorithm of the absolute angular displacement is proposed to prevent the misidentification of absolute angular displacement due to oil contamination. Moreover, a multi-reading-head data fusion method was employed to determine and eliminate the erroneous reading head measurement data. The effectiveness of this method was verified by experimentally comparing the angular displacement curves and angular velocity curves obtained from a quasi-absolute angular displacement measuring device, with and without the application of the proposed method. The effects of oil contamination on the accuracy of measurement were also compared. The results indicated that after application of the method, the error in the angular displacement measured by the code disk due to oil contamination was significantly reduced, ensuring the correctness and reliability of the angle-displacement measurement, although the accuracy of measurement was still slightly influenced. Thus, the proposed method is considered to have practical value for making the spaceborne quasi-absolute optical encoder better against the influence of oil contamination.</p>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"3 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140196080","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

Linear image sensor with triangular pixel geometry specialized for the light section method 具有三角形像素几何形状的线性图像传感器，专用于光截面法

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-22 DOI: 10.1007/s10043-024-00872-w

引用次数: 0

High Q-factor multiple Fano resonances in all-dielectric metasurface based on quasi-bound states in the continuum 基于连续体中准束缚态的全介质元表面中的高 Q 因子多重法诺共振

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-11 DOI: 10.1007/s10043-024-00874-8

{"title":"High Q-factor multiple Fano resonances in all-dielectric metasurface based on quasi-bound states in the continuum","authors":"","doi":"10.1007/s10043-024-00874-8","DOIUrl":"https://doi.org/10.1007/s10043-024-00874-8","url":null,"abstract":"<h3>Abstract</h3> <p>Bound states in the continuum (BICs) spectrum are localized states in the continuum domain with an infinite lifetime, zero radiation, and an infinite quality factor (Q-factor). The structural symmetry is typically broken to transform BICs into quasi-BICs with ultrahigh Q-factors, which are used in fields such as optical switches, nonlinear optics, and sensing. Herein, we present an all-dielectric metasurface fabricated by depositing Si on the SiO<sub>2</sub> substrate and etching an “8”-shape hole in the middle of each unit. By breaking the symmetry of the structure, the BIC is transformed into a quasi-BIC mode, which can realize triple Fano resonances with a high Q-factor. The effects of different structural parameters on the Fano resonances are investigated by varying the structural parameters. The physical mechanisms of the three Fano resonances are elucidated by combining the electromagnetic field and multipole decomposition of scattered power. Calculation results show that the maximum Q-factor reaches 4.7 × 10<sup>4</sup>, the maximum figure-of-merit (FOM) value reaches 675, and the modulation depths of the three resonances are approximately 100%. The metasurface exhibits a high Q-factor, FOM value, and modulation depth, thus rendering it suitable for application to high-performance biosensors, nonlinear optics, and optical switches.</p>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"5 2 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097075","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

Effect of MoS2 and (phosphorene, germanene, borophene) hybrid structure on the performance of an SPR biosensor for detection of bacteria MoS2 和（磷烯、锗烯、硼烯）杂交结构对用于检测细菌的 SPR 生物传感器性能的影响

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-03-11 DOI: 10.1007/s10043-024-00875-7

Mohammad Hadi Shahrokh Abadi, Amir Davami

{"title":"Effect of MoS2 and (phosphorene, germanene, borophene) hybrid structure on the performance of an SPR biosensor for detection of bacteria","authors":"Mohammad Hadi Shahrokh Abadi, Amir Davami","doi":"10.1007/s10043-024-00875-7","DOIUrl":"10.1007/s10043-024-00875-7","url":null,"abstract":"<div><p>In this paper, the effect of different structures and flakes of phosphorene (Ph), germanene (Ge), and borophene (B) sandwiched between MoS<sub>2</sub> layers on the surface plasmon resonance (SPR) biosensor structure is simulated and investigated in the Lumerical software environment. The main structure is based on the Kretschmann structure, utilizing the BK<sub>7</sub> prism, a 30 nm gold (Au) layer, and an MoS<sub>2</sub> and (Ph, Ge, B) hybrid structure as the top layer. The reflectance curves of the proposed SPR biosensors were obtained, analyzed, and compared for different refractive index modes, specifically <i>n</i> = 1.33 for a neutral aqueous medium and <i>n</i> = 1.339 for a bacterial medium. The results demonstrate that the minimum reflectance occurs for a 30 nm Au layer at an SPR resonance angle of θ = 71.95°. However, when different configurations of (Ph, Ge, B) with varying thicknesses are sandwiched between MoS<sub>2</sub> layers on the Au layer, the resonance angle increases. The minimum reflectance values for a monolayer of phosphorene, a triple layer of germanene, and a triple layer of borophene sandwiched between MoS<sub>2</sub> double layers on the Au layer are 0.027, 0.002, and 0.004, respectively. The triple layer of germanene exhibits the highest sensitivity of 152°/RIU for Δn = 0.009 with a detection accuracy of 0.090. The simulation results of the proposed structures present new opportunities for enhancing the sensitivity and performance of SPR biosensors.</p></div>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"31 Japan","pages":"615 - 624"},"PeriodicalIF":1.1,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140097022","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

Lightness modification method considering chromaticity loss for dichromats 考虑色度损失的重色器亮度修正方法

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-11 DOI: 10.1007/s10043-024-00870-y

Shi Bao, Xiao Yan

引用次数: 0

Formulation and evaluation of polarization-modulated triple-view information display with three TN-LCD layers 使用三层 TN-LCD 的偏振调制三视角信息显示器的设计与评估

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-02 DOI: 10.1007/s10043-024-00865-9

Keitaro Uchida, Shiro Suyama, Hirotsugu Yamamoto

引用次数: 0

Optical, chemical and coverage properties of magnesium fluoride formed by atomic layer deposition 原子层沉积形成的氟化镁的光学、化学和覆盖特性

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-03-02 DOI: 10.1007/s10043-024-00867-7

Yuma Sugai, Hironori Sugata, Takuya Sugawara, Safdar Muhammad, Jani Hämäläinen, Nina Lamminmäki, Juhana Kostamo

引用次数: 0

Speckle-learning-based object recognition using optical memory effect 利用光学记忆效应进行基于斑点学习的物体识别

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-28 DOI: 10.1007/s10043-024-00868-6

Yohei Nishizaki, Katsuhisa Kitaguchi, Mamoru Saito, Jun Tanida

引用次数: 0

Compression of femtosecond-pulse waveforms in spectral intensity filters 压缩光谱强度滤波器中的飞秒脉冲波形

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-26 DOI: 10.1007/s10043-024-00866-8

Koyo Watanabe, Hisanari Takahashi, Kyohhei Shigematsu, Naoya Matsumoto, Takashi Inoue

{"title":"Compression of femtosecond-pulse waveforms in spectral intensity filters","authors":"Koyo Watanabe, Hisanari Takahashi, Kyohhei Shigematsu, Naoya Matsumoto, Takashi Inoue","doi":"10.1007/s10043-024-00866-8","DOIUrl":"https://doi.org/10.1007/s10043-024-00866-8","url":null,"abstract":"<p>Femtosecond pulsed lasers are widely used in applied technologies, such as laser processing, nonlinear optical microscopy, and time-of-flight measurement, wherein narrowing the pulse duration is particularly important for improving the processing efficiency and signal-to-noise ratio of measurement systems. This paper proposes a method for shortening temporal pulse waveforms using spectral intensity filtering. Symmetrical spectral filtering was specifically applied at the central wavelength of the femtosecond pulsed laser spectrum. To investigate the pulse-narrowing effect, we numerically simulated the pulse duration as a function of the filtering width and cut-off wavelength position. The results of these simulations showed that the pulse duration decreased as the filter wavelength approached the central wavelength of the light. Furthermore, increasing the filter width reduced the pulse duration. Additionally, we implemented a spatial light modulator-based pulse-shaping system to realize a spectral intensity filter. We experimentally demonstrated that the duration of a telecom-band pulse was reduced by 9.8% when using a spectral intensity filter with a width of 1 nm.</p>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"119 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139967453","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

Monitoring of the formation of biofilm inside a glass tube using light scattering patterns 利用光散射模式监测玻璃管内生物膜的形成

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-02-21 DOI: 10.1007/s10043-024-00864-w

Naomichi Yokoi, Tomonori Yuasa, Ilpo Niskanen, Kenichi Hibino, Hideki Funamizu, Yoshihisa Aizu

引用次数: 0