Optical Review最新文献_第6页

Study on the diffraction light field of two special beams through a cylindrical lens 关于通过圆柱透镜的两束特殊光束的衍射光场的研究

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-13 DOI: 10.1007/s10043-024-00921-4

Yanwu Zhou, Yuanfangzhou Wang, Licun Sun

引用次数: 0

Orthogonal polarization dual-wavelength Nd: GdVO4 laser at 1341 nm and 1344 nm with 880 nm LD direct pumping 1341 纳米和 1344 纳米正交偏振双波长 Nd：GdVO4 激光器，880 纳米 LD 直接泵浦

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-12 DOI: 10.1007/s10043-024-00919-y

Yichen Liu, Haifeng Lin, Mingzhan Liu, Ruizhen Mu, Feibing Xiong

引用次数: 0

Spatiotemporal-coupled partially coherent pulsed source and its propagation 时空耦合部分相干脉冲源及其传播

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-10 DOI: 10.1007/s10043-024-00917-0

Yan Li, Mingjun Wang

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Design and analysis of parallel polarization-beam-splitter-based optical filter with adjustable channel spacing 基于平行偏振光束分光器的可调通道间距光学滤波器的设计与分析

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-09 DOI: 10.1007/s10043-024-00920-5

Yinghui Zhang, Xuefang Zhou, Minquan Lai, Miao Hu

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The shift–rotation absolute testing method based on autocollimation 基于自动对准的移位旋转绝对测试法

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-09-25 DOI: 10.1007/s10043-024-00912-5

Jianke Li, Yongqian Wu, Fengwei Liu, Zhan Tang, Haiyang Quan, Xiaojun Chen

引用次数: 0

Research on the technology of realizing normal operation of medium-wave infrared camera in space by simulating a vacuum environment on the ground 通过模拟地面真空环境实现太空中波红外摄像机正常工作的技术研究

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-09-17 DOI: 10.1007/s10043-024-00913-4

JianYu Miao, XingXiang Zhang, DongLin Xue, ShuXin Wang, ZhongShan Wang, MingXu Li, Duo Wang

{"title":"Research on the technology of realizing normal operation of medium-wave infrared camera in space by simulating a vacuum environment on the ground","authors":"JianYu Miao, XingXiang Zhang, DongLin Xue, ShuXin Wang, ZhongShan Wang, MingXu Li, Duo Wang","doi":"10.1007/s10043-024-00913-4","DOIUrl":"https://doi.org/10.1007/s10043-024-00913-4","url":null,"abstract":"To enable the operation of a mid-wave infrared (MWIR) camera under vacuum and low-temperature conditions for space-based Earth imaging optical systems, research was conducted on the optical system, mechanical structure, and vacuum and low-temperature testing methods employed in the MWIR optical system. A low-temperature MWIR camera was designed to operate under normal atmospheric pressure, vacuum, and low-temperature conditions. The camera comprises independent optical lenses, an MWIR dewar, an image processing unit, a vacuum refrigeration unit, and preset water cooling pipes. The MWIR lens consists of a front lens unit, a focusing lens unit with a two-stage reduction mechanism, and a rear lens. The assembly temperature of the MWIR camera is 293 K with an operational temperature of 100 K, and the temperature variation does not exceed 193 K. A structural thermal-optical performance analysis of the MWIR lens was conducted to evaluate the optical performance degradation caused by temperature changes. The measurement of the MWIR lens was described using an MWIR interferometer and a spherical standard MWIR mirror, providing on-axis and off-axis wave aberrations. One method was proposed to test the modulation transfer function of the MWIR camera under two different conditions. Experimental results confirmed that the overall design of the MWIR camera ensures normal operation in a vacuum low-temperature environment.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"471 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236558","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

Research and correction for over-response phenomenon when using inorganic scintillator optical fiber X-ray sensor to measure off-axis ratio (OAR) 使用无机闪烁体光纤 X 射线传感器测量离轴比 (OAR) 时对过响应现象的研究和修正

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-09-15 DOI: 10.1007/s10043-024-00914-3

Bo He, Tianci Xie, Wenjing Hao, Jingjing Wang, Haojie Yang, Ziyin Chen, Bin Yang, Qieming Shi, Jinqian Qian, Elfed Lewis, Weimin Sun

{"title":"Research and correction for over-response phenomenon when using inorganic scintillator optical fiber X-ray sensor to measure off-axis ratio (OAR)","authors":"Bo He, Tianci Xie, Wenjing Hao, Jingjing Wang, Haojie Yang, Ziyin Chen, Bin Yang, Qieming Shi, Jinqian Qian, Elfed Lewis, Weimin Sun","doi":"10.1007/s10043-024-00914-3","DOIUrl":"https://doi.org/10.1007/s10043-024-00914-3","url":null,"abstract":"Optical fiber X-ray sensors have the potential to realize real-time dose monitoring of precision radiotherapy. However, an over-response phenomenon can occur when using an optical fiber sensor (OFXS) filled with inorganic scintillator (Gd2O2S:Tb) to measure the off-axis ratio (OAR) curve. The aim of this paper is to study the mechanism responsible for the over-response. Due to the complex particle distribution present in water phantoms, the Monte Carlo-based code GEANT4 was used to model the response of the scintillator. The energy response of the scintillator to photons and electrons was initially simulated, which subsequently allowed the OAR curve to be simulated and the results were compared with experiment. To analyze the energy distribution of particles in different positions, electron spectroscopy was simulated together with the photon spectrum at the position from the central axis to a distance of 14.5 cm away from the center. Finally, three metal (Al, Cu, Sn) caps were made for the OFXS to prevent the low-energy photons penetrating the OFXS, and the OARs measurements were repeated. The results show that the scintillator exhibits higher sensitivity to photons with energy below 0.5 MeV, while for electrons, the scintillator has a higher sensitivity to high-energy electrons. Simulations for electron spectroscopy and the photon spectrum show that there are many low-energy photons with relatively few low-energy electrons. The OARs measured using the OFXS with metal caps show that the over-response can be mitigated using a high-Z metal cap. The measurements demonstrate that the OAR cure measured using an OFXS fitted with a Sn cap exhibits the closest response to that measured using an IC.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"44 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234464","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

Novel high light efficiency pancake optics for HMD named “double path” 用于 HMD 的新型高光效薄饼光学器件，命名为 "双路径

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-09-11 DOI: 10.1007/s10043-024-00908-1

Naru Usukura, Takehisa Yoshida, Kiyoshi Minoura, Yoshiko Honma

{"title":"Novel high light efficiency pancake optics for HMD named “double path”","authors":"Naru Usukura, Takehisa Yoshida, Kiyoshi Minoura, Yoshiko Honma","doi":"10.1007/s10043-024-00908-1","DOIUrl":"https://doi.org/10.1007/s10043-024-00908-1","url":null,"abstract":"The folded optics for HMD (head-mounted display), commonly referred to as pancake optics, is widely used to realize a compact HMD headset. The optics has the advantage of compactness, but also has a big drawback of lowering light efficiency. To overcome the issue, we proposed novel HMD pancake optics named “DP (double path) pancake optics” to achieve both compactness and high light efficiency simultaneously. In this paper, we introduce the principle of our “DP pancake optics” and review our prototype. We describe optical simulation results to find a highly balanced design among thickness, lens power, and magnification ratio. We also describe fabrication study of, such as polarization state and alignment accuracy. We successfully have fabricated two prototypes with 90° FOV (field of view), one of which is 20.6 mm optics thickness and the other is 25.5 mm optics thickness. The latter prototype especially shows high MTF with a 1200 ppi (pixel per inch) resolution LCD (liquid crystal display). Both prototypes have 1.8 times higher light efficiency than that of conventional one. In addition, to further expand the DP pancake optics, we also describe the improved design with wider FOV for future prototype fabrication. Therefore, we also show the optical simulation result of the improved design.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"32 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142166453","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

Time synchronization method of wireless distributed sensor node and its application for real-time dust monitoring 无线分布式传感器节点的时间同步方法及其在灰尘实时监测中的应用

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-08-27 DOI: 10.1007/s10043-024-00907-2

J. Junker, A. Furuya, H. Kawai, M. Ueno, M. Date

{"title":"Time synchronization method of wireless distributed sensor node and its application for real-time dust monitoring","authors":"J. Junker, A. Furuya, H. Kawai, M. Ueno, M. Date","doi":"10.1007/s10043-024-00907-2","DOIUrl":"https://doi.org/10.1007/s10043-024-00907-2","url":null,"abstract":"In this study, we aim to conduct real-time sensing of indoor dust concentration distribution to mitigate the airborne transmission of coronaviruses. Airborne infection, facilitated by viruses present in particulate matter, emphasizes the importance of monitoring dust concentration as an indicator of virus spread. Our approach involves the implementation of a time-synchronized wireless sensor network for real-time sensing of dust concentration distribution. The time-synchronized wireless sensor network relies on a proposed time-synchronization algorithm, ensuring a time error of less than ± 1.27 ms. This precision enables the measurement of even fast-moving dust particles. To validate the feasibility of the wireless time-synchronized sensor network, we utilized a dust ejector (air cannon) and positioned time-synchronized sensors in a row. Dust particles released from the ejector passed through each time-synchronized sensor terminal. Simultaneously, a video recording (60 frames) was conducted, and the measured times of the time-synchronized sensor terminals were compared with the lap times of the video. The results of this comparison revealed identical lap times between the time-synchronized sensor data and the video, affirming the successful operation of the time-synchronized wireless distributed sensor node as designed.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"7 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142085065","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

Luminescence properties and temperature characteristics of Yb3+/Nd3+/Ho3+ triple doped BaGeTeO6 up-conversion phosphors under 980 nm excitation 980 纳米激发下 Yb3+/Nd3+/Ho3+ 三重掺杂 BaGeTeO6 上转换荧光粉的发光特性和温度特征

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2024-08-23 DOI: 10.1007/s10043-024-00911-6

Shengyi Liu, Duan Gao, Li Wang, Wenbin Song, Zhiliang Zhang, Peilin Du, Ying Zhu, Peijia Xiao, Qi Zhang

{"title":"Luminescence properties and temperature characteristics of Yb3+/Nd3+/Ho3+ triple doped BaGeTeO6 up-conversion phosphors under 980 nm excitation","authors":"Shengyi Liu, Duan Gao, Li Wang, Wenbin Song, Zhiliang Zhang, Peilin Du, Ying Zhu, Peijia Xiao, Qi Zhang","doi":"10.1007/s10043-024-00911-6","DOIUrl":"https://doi.org/10.1007/s10043-024-00911-6","url":null,"abstract":"BaGeTeO6: Nd3+/Yb3+/Ho3+ green up-conversion phosphors were synthesized using the high-temperature solid-state reaction method. The optimal doping concentrations for the three dopant ions Nd3+, Yb3+, and Ho3+ were determined to be 1 mol%, 6 mol%, and 0.8 mol%, respectively, through the method of controlling variables. By analyzing the dependence of the up-conversion luminescence intensity on the pump current of the 980 nm laser, it was found that the green and red up-conversion emissions of Ho3+ ions under 980 nm laser excitation were both two-photon processes. Furthermore, the influence of temperature on the up-conversion luminescent properties of BaGeTeO6: Nd3+/Yb3+/Ho3+ green up-conversion phosphors under 980 nm laser excitation was investigated, and the temperature sensing properties of Ho3+ ions were discussed. The results indicated that, at room temperature and higher temperatures, both the red and green up-conversion emissions of the sample were two-photon processes. Within the range of excitation current used in the experiment, the ratio of red to green up-conversion luminescence intensity of Ho3+ ions was independent of the laser excitation current but correlated with the sample temperature. In the temperature range of 303–723 K, the ratio of red to green up-conversion luminescence intensity of Ho3+ ions exhibited a nonlinear relationship with temperature. Comparing the temperature sensing sensitivity of Ho3+ in different matrices, the results indicated that the sample possessed high temperature sensing sensitivity.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"127 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042618","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