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Experimental and numerical demonstration of driver pulse spectral width and phase dependence in near-single-cycle pulses generation post-compression. 压缩后近单周脉冲产生中驱动脉冲谱宽和相位依赖的实验和数值证明。
Optics continuum Pub Date : 2023-11-03 DOI: 10.1364/optcon.492963
Jean-Francois Hergott, Fabrice Réau, Fabien Lepetit, Olivier Tcherbakoff, Olivier Sublemontier Sublemontier, Xiaowei Chen, benoit bussiere, Pierre Mary Paul, Pascal D'Oliveira, Rodrigo Lopez-Martens, T. Auguste
{"title":"Experimental and numerical demonstration of driver pulse spectral width and phase dependence in near-single-cycle pulses generation post-compression.","authors":"Jean-Francois Hergott, Fabrice Réau, Fabien Lepetit, Olivier Tcherbakoff, Olivier Sublemontier Sublemontier, Xiaowei Chen, benoit bussiere, Pierre Mary Paul, Pascal D'Oliveira, Rodrigo Lopez-Martens, T. Auguste","doi":"10.1364/optcon.492963","DOIUrl":"https://doi.org/10.1364/optcon.492963","url":null,"abstract":"For many years, light-matter interaction in the strong-field regime has benefited from continuous improvement of femtosecond lasers, in terms of peak power or repetition rate. One of the most current major challenges is the achievement of high-energy, near single-cycle pulses. Such performances are of primary interest in attosecond science for producing intense isolated bursts of extreme ultraviolet light through high-harmonic generation in gases or solids. We present here a detailed experimental and numerical study on a helium filled hollow-core fiber-based post-compression stage. Our measurements highlight the importance of the width and phase of the input spectrum on the spectral broadening, and on the resulting post-compressed pulse. Near Fourier-transform-limited pulses as short as 3.5 fs, carrying a 2.5 mJ energy centered at 750 nm at 1 kHz repetition rate, and leading to a compression factor greater than seven, are demonstrated. The numerical results are in good agreement with the experimental data. Here, spectral broadening is governed by the Kerr effect and the self-steepening on the trailing edge of the guided pulse.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135774888","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 influences of edge dislocation on optical vortex transmission 边缘位错对光涡旋传输的影响
Optics continuum Pub Date : 2023-11-03 DOI: 10.1364/optcon.505511
Gao Penghui, Lu Meihong, Jingying Li
{"title":"The influences of edge dislocation on optical vortex transmission","authors":"Gao Penghui, Lu Meihong, Jingying Li","doi":"10.1364/optcon.505511","DOIUrl":"https://doi.org/10.1364/optcon.505511","url":null,"abstract":"Through theoretical calculation, the analytical expression for the cross-spectral density function of vortex beam with and without edge dislocation during transmission in turbulent atmosphere and free space is obtained. The calculation result is used for researching the influences of edge dislocation on optical vortex transmission. The research shows that due to the edge dislocation, when the optical vortex's topological charge is greater than +1, the optical vortex will no longer carry out steady transmission in the free space transmission. Instead, it will divide into two optical vortices, and the distance between them will gradually increase as the transmission distance increases. Optical vortex will split in turbulent atmosphere propagation. Due to the edge dislocation, when the topological charge of optical vortex is greater than +2, it is found that the distance between one optical vortex and other optical vortices is much larger than that between other optical vortices. Besides, when there's an edge dislocation, the greater the light wavelength and the structure constant are, the smaller the distance between the optical vortex and the edge dislocation on the source plane is, and the evolution of the optical vortex will be accelerated.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775593","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
Practical quantum imaging with undetectedphotons 未探测光子的实用量子成像
Optics continuum Pub Date : 2023-11-03 DOI: 10.1364/optcon.507154
Emma Pearce, Nathan Gemmell, Jefferson Florez, Jiaye Ding, Rupert Oulton, Alex Clark, Christopher Phillips
{"title":"Practical quantum imaging with undetectedphotons","authors":"Emma Pearce, Nathan Gemmell, Jefferson Florez, Jiaye Ding, Rupert Oulton, Alex Clark, Christopher Phillips","doi":"10.1364/optcon.507154","DOIUrl":"https://doi.org/10.1364/optcon.507154","url":null,"abstract":"Infrared (IR) imaging is invaluable across many scientific disciplines, from material analysis to diagnostic medicine. However, applications are often limited by detector cost, resolution and sensitivity, noise caused by the thermal IR background, and the cost, portability and tunability of infrared sources. Here, we describe a compact, portable, and low-cost system that is able to image objects at IR wavelengths without an IR source or IR detector. This imaging with undetected photons (IUP) approach uses quantum interference and correlations between entangled photon pairs to transfer image information from the IR to a wavelength which can be detected with a standard silicon camera. We also demonstrate a rapid analysis approach to acquire both phase and transmission image information. These developments provide an important step towards making IUP a commercially viable technique.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775588","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: 2
Enhancement of Graphene Absorption: ANumerical Formula to Design a SuitableFabry-Perot Cavity in Terahertz Spectral Window 增强石墨烯吸收:在太赫兹光谱窗中设计合适的法布里-珀罗腔的数值公式
Optics continuum Pub Date : 2023-11-03 DOI: 10.1364/optcon.503960
Pulimi Mahesh, Damodar Panigrahy, Chittaranjan Nayak, Amit Goyal, Yehia Massoud
{"title":"Enhancement of Graphene Absorption: ANumerical Formula to Design a SuitableFabry-Perot Cavity in Terahertz Spectral Window","authors":"Pulimi Mahesh, Damodar Panigrahy, Chittaranjan Nayak, Amit Goyal, Yehia Massoud","doi":"10.1364/optcon.503960","DOIUrl":"https://doi.org/10.1364/optcon.503960","url":null,"abstract":"In this article, we investigate the absorption characteristics of a graphene-embedded FP cavity in a terahertz spectral window. The optical attributes were determined by a 4 × 4 transfer matrix procedure. The findings demonstrate that perfect absorption is completely reliant on the structural characteristics of the FP cavity throughout a broad range of terahertz frequencies. From the obtained dataset, numerical formulae are generated for structural parameters ( N FD , N BD ) using a linear regression machine learning algorithm to achieve higher than 90% absorption. The artificial neural network trained using our dataset provided a coefficient of determination ( R 2 )=1, opening up new pathways to design perfect terahertz absorbers. Furthermore, we explored the influence of magnetic biasing on absorption traits, and our findings show that fine absorption improvement is conceivable. The formulated numerical relations have greater importance in the design of perfect terahertz absorbers.","PeriodicalId":74366,"journal":{"name":"Optics continuum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775594","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
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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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
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