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Temporal evolution of laser-induced ionization and recombination processes in argon-helium mixture 氩氦混合物中激光诱导电离和复合过程的时间演化
Optics continuum Pub Date : 2023-11-02 DOI: 10.1364/optcon.506849
Shu Hu, Ke Huang, Feng Zhu, Baodong Gai, Juntao Li, Yannan Tan, jingwei Guo
{"title":"Temporal evolution of laser-induced ionization and recombination processes in argon-helium mixture","authors":"Shu Hu, Ke Huang, Feng Zhu, Baodong Gai, Juntao Li, Yannan Tan, jingwei Guo","doi":"10.1364/optcon.506849","DOIUrl":"https://doi.org/10.1364/optcon.506849","url":null,"abstract":"","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"38 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RedEye-1: A Compact SWIR Hyper-spectral Imager for Observation of Atmospheric Carbon Dioxide and Methane 用于观测大气二氧化碳和甲烷的紧凑型SWIR高光谱成像仪
Optics continuum Pub Date : 2023-11-02 DOI: 10.1364/optcon.494570
Naif Alsalem, Christopher Betters, Yiwei Mao, IVER H. CAIRNS, Sergio Leon-Saval
{"title":"RedEye-1: A Compact SWIR Hyper-spectral Imager for Observation of Atmospheric Carbon Dioxide and Methane","authors":"Naif Alsalem, Christopher Betters, Yiwei Mao, IVER H. CAIRNS, Sergio Leon-Saval","doi":"10.1364/optcon.494570","DOIUrl":"https://doi.org/10.1364/optcon.494570","url":null,"abstract":"We present the development of our first prototype of a compact short-wavelength infrared (SWIR) hyperspectral imager, RedEye-1, designed to observe and measure the concentrations of methane (CH 4 ) and carbon dioxide (CO 2 ) in the atmosphere. It operates in the spectral range of 1588 nm to 1673 nm with a nominal spectral resolution of 0.5 nm and has a total weight of approximately 1.8 kg. We outline the optical design of the instrument, including its fore-optics (telescope), and evaluate its performance using the OpticStudio ZEMAX software. In addition, we explain the spectral and radiometric calibration procedures and present the results. Our preliminary data reduction and analysis revealed a high quality SWIR image and a single path measurement of an atmospheric profile displaying the absorption lines of CH 4 and CO 2 .","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"44 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135874631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photothermal optical coherence tomography for 3D live cell detection and mapping 用于三维活细胞检测和绘图的光热光学相干层析成像
Optics continuum Pub Date : 2023-10-31 DOI: 10.1364/optcon.503577
Jingyu Sun, Tianqi Fang, Hongjun Hongjun Wang, Shang Wang
{"title":"Photothermal optical coherence tomography for 3D live cell detection and mapping","authors":"Jingyu Sun, Tianqi Fang, Hongjun Hongjun Wang, Shang Wang","doi":"10.1364/optcon.503577","DOIUrl":"https://doi.org/10.1364/optcon.503577","url":null,"abstract":"","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"133 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135814059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Impact of Structural Parameters on Multimode D-Shape Optical Fiber Refractive Index Sensors for Different Materials 结构参数对不同材料多模d型光纤折射率传感器的影响
Optics continuum Pub Date : 2023-10-30 DOI: 10.1364/optcon.502577
Hiba Abbas, Zainab Albawi
{"title":"The Impact of Structural Parameters on Multimode D-Shape Optical Fiber Refractive Index Sensors for Different Materials","authors":"Hiba Abbas, Zainab Albawi","doi":"10.1364/optcon.502577","DOIUrl":"https://doi.org/10.1364/optcon.502577","url":null,"abstract":"","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"65 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136103327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced sensitivity distributed sensing of magnetic fields in optical fiber using random Bragg grating 利用随机布拉格光栅提高光纤磁场分布式传感的灵敏度
Optics continuum Pub Date : 2023-10-25 DOI: 10.1364/optcon.509943
Antoine Leymonerie, J. Boisvert, Leonie Juszczak, S. Loranger
{"title":"Enhanced sensitivity distributed sensing of magnetic fields in optical fiber using random Bragg grating","authors":"Antoine Leymonerie, J. Boisvert, Leonie Juszczak, S. Loranger","doi":"10.1364/optcon.509943","DOIUrl":"https://doi.org/10.1364/optcon.509943","url":null,"abstract":"We show that the use of Random Optical Grating using UV Exposure (ROGUE) can significantly reduce the noise floor of an optical frequency domain reflectometry (OFDR) measurement of Faraday rotation in the polarization. We compare it with unexposed spun fiber which shows a S/P minimum ratio (signal noise floor) 20 dB higher than when using our ROGUE. High sensitivity magnetic field measurements are achieved by spatially filtering (setting a gage length) the derivative of the S/P ratio's evolution. Example of a calibrated electromagnet spatially resolved B-field measurement is demonstrated, which can measure fields down to 10 mT with 10 cm spatial resolution. The potential for current sensing using such ROGUE apparatus is discussed and simulation shows a noise floor of around 1 A with 40 probing loops spatial resolution.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139314141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of squeezing on atomic lineshapes 压缩对原子线形的影响
Optics continuum Pub Date : 2023-10-20 DOI: 10.1364/optcon.495838
Leonardi Hernández Sánchez, Iran Ramos Prieto, Francisco Soto-Eguibar, Hector Moya-Cessa
{"title":"Effects of squeezing on atomic lineshapes","authors":"Leonardi Hernández Sánchez, Iran Ramos Prieto, Francisco Soto-Eguibar, Hector Moya-Cessa","doi":"10.1364/optcon.495838","DOIUrl":"https://doi.org/10.1364/optcon.495838","url":null,"abstract":"","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Capturing videos at 60 frames per second using incoherent digital holography 使用非相干数字全息术以每秒60帧的速度捕获视频
Optics continuum Pub Date : 2023-10-20 DOI: 10.1364/optcon.504455
Tetsuhiko Muroi, Teruyoshi Nobukawa, Yutaro Katano, Kei Hagiwara
{"title":"Capturing videos at 60 frames per second using incoherent digital holography","authors":"Tetsuhiko Muroi, Teruyoshi Nobukawa, Yutaro Katano, Kei Hagiwara","doi":"10.1364/optcon.504455","DOIUrl":"https://doi.org/10.1364/optcon.504455","url":null,"abstract":"","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135616538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One Dimensional Temperature Measurements by Resonantly Ionized Photoemission Thermometry of Molecular Nitrogen 分子氮共振电离光发射测温的一维温度测量
Optics continuum Pub Date : 2023-10-19 DOI: 10.1364/optcon.503546
Walker McCord, Aleksander Clark, Zhili Zhang
{"title":"One Dimensional Temperature Measurements by Resonantly Ionized Photoemission Thermometry of Molecular Nitrogen","authors":"Walker McCord, Aleksander Clark, Zhili Zhang","doi":"10.1364/optcon.503546","DOIUrl":"https://doi.org/10.1364/optcon.503546","url":null,"abstract":"This paper presents an extensive parameter study of a non-intrusive and non-seeded laser diagnostic method for measuring one dimensional (1D) rotational temperature of molecular nitrogen (N 2 ) at 165 - 450 K. Compared to previous efforts using molecular oxygen, here resonantly ionized and photoelectron induced fluorescence of molecular nitrogen for thermometry (N 2 RIPT) was demonstrated. The RIPT signal is generated by directly probing various rotational levels within the rovibrational absorption band of N 2 , corresponding to the 3-photon transition of N 2 ( X 1 Σ g + , v =0→ b 1 Π u , v ′ =6) near 285 nm, without involving collisional effects of molecular oxygen and nitrogen. The photoionized N 2 produces strong first negative band of N 2 + ( B 2 Σ u + − X 2 Σ g + ) near 390 nm, 420 nm, and 425 nm. Boltzmann analyses of various discrete fluorescence emission lines yield rotational temperatures of molecular nitrogen. By empirically choosing multiple rotational levels within the absorption band, non-scanning thermometry can be accurately achieved for molecular nitrogen. It is demonstrated that the N 2 RIPT technique can measure 1D temperature profile up to ∼5 cm in length within a pure N 2 environment. Multiple wavelengths are thoroughly analyzed and listed that are accurate for RIPT for various temperature ranges.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135666575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Open Source, Heterogeneous, NonlinearOptics Simulation 一个开源，异构，非线性光学仿真
Optics continuum Pub Date : 2023-10-19 DOI: 10.1364/optcon.502567
Nicholas Karpowicz
{"title":"An Open Source, Heterogeneous, NonlinearOptics Simulation","authors":"Nicholas Karpowicz","doi":"10.1364/optcon.502567","DOIUrl":"https://doi.org/10.1364/optcon.502567","url":null,"abstract":"The spatio-temporal evolution of a laser field taking part in a nonlinear optical interaction can be challenging to simulate, yet forms the basis for many experiments in ultrafast optics. To allow better insight into these phenomena, a program for nonlinear optics simulations is described, which can run on multiple hardware platforms, and is performant and open source. It was designed to deal with a number of complex problems in light-matter interaction accurately and reproducibly. The open source code allows for extensive cross-checking of its results by other researchers and growth of its capabilities over time, as well as serving to make the simulations associated with ultrafast experiments more broadly reproducible.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135667247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Analysis of Photon Absorption of Gate-defined Quantum Dots Embedded in Asymmetric Bull’s-eye Optical Cavities 非对称牛眼光学腔中门定义量子点光子吸收的数值分析
Optics continuum Pub Date : 2023-10-17 DOI: 10.1364/optcon.492718
Sangmin Ji, Satoshi Iwamoto
{"title":"Numerical Analysis of Photon Absorption of Gate-defined Quantum Dots Embedded in Asymmetric Bull’s-eye Optical Cavities","authors":"Sangmin Ji, Satoshi Iwamoto","doi":"10.1364/optcon.492718","DOIUrl":"https://doi.org/10.1364/optcon.492718","url":null,"abstract":"Improving the photon-spin conversion efficiency without polarization dependence is a major challenge in realizing quantum interfaces gate-defined quantum dots (QDs) for polarization-encoded photonic quantum network systems. Previously, we reported the design of an air-bridge bull's-eye cavity that enhances the photon absorption efficiency of an embedded gate-defined QD regardless of the photon polarization. Here, we numerically demonstrate that a further 1.6 times improvement in efficiency is possible by simply adjusting the distance of the substrate from the semiconductor slab where the bull's-eye structure is formed. Our analysis clarifies that the upward-preferred coupling and narrow far-field emission pattern realized by substrate-induced asymmetry enable the improvement.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135993240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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