Pub Date : 2020-09-14DOI: 10.1364/FIO.2020.FTU8E.2
K. A. Qubaisi, M. Popović
We emulate the reflectionless response of a traveling-wave resonator using two bus-coupled photonic crystal nanobeam cavities with respective symmetric and antisymmetric modes. The scheme may enable new active device platforms beyond ring resonators.
{"title":"Photonic resonators with microring-like behavior based on standing wave cavity pairs with opposite-symmetry modes","authors":"K. A. Qubaisi, M. Popović","doi":"10.1364/FIO.2020.FTU8E.2","DOIUrl":"https://doi.org/10.1364/FIO.2020.FTU8E.2","url":null,"abstract":"We emulate the reflectionless response of a traveling-wave resonator using two bus-coupled photonic crystal nanobeam cavities with respective symmetric and antisymmetric modes. The scheme may enable new active device platforms beyond ring resonators.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89245982","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}
We generate the super-resolution hollow beams with long depth of focus (DOF) by diffractive optical elements (DOEs). The hollow beams can provide great flexibility by controlling spot size and DOF through the DOEs parameters.
{"title":"Super-resolution hollow beams with long depth of focus formed by diffractive optical elements","authors":"Ninghan Xu, Qiaofeng Tan","doi":"10.1364/FIO.2020.FW1A.7","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW1A.7","url":null,"abstract":"We generate the super-resolution hollow beams with long depth of focus (DOF) by diffractive optical elements (DOEs). The hollow beams can provide great flexibility by controlling spot size and DOF through the DOEs parameters.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89544149","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}
We demonstrate an optics pipeline for classical computer-vision autoencoders, which are a reliable de-noising defense against adversarial attacks. With vortex Fourier encoding, we show results with 10 nJ/cm2 illumination.
{"title":"Hybrid Autoencoder for Low-light and Adversarially-robust Imaging","authors":"Baurzhan Muminov, L. Vuong","doi":"10.1364/FIO.2020.FW7A.3","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW7A.3","url":null,"abstract":"We demonstrate an optics pipeline for classical computer-vision autoencoders, which are a reliable de-noising defense against adversarial attacks. With vortex Fourier encoding, we show results with 10 nJ/cm2 illumination.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"124 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89416767","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}
Pub Date : 2020-09-14DOI: 10.1364/FIO.2020.JTH4B.30
S. Marrujo-García, I. Hernández-Romano, M. Torres-Cisneros, D. May-Arrioja, V. Minkovich, D. Monzón-Hernández
The output signal of Mach-Zehnder curvature sensor was Fourier transformed to increase its curvature range to high value of 1.69 m-1, relative to the traditional fringe contrast measurement 1.09 m-1.
{"title":"Use of FFT to Increase Measurement Range of a Curvature Sensor Based on a Mach-Zehnder Interferometer","authors":"S. Marrujo-García, I. Hernández-Romano, M. Torres-Cisneros, D. May-Arrioja, V. Minkovich, D. Monzón-Hernández","doi":"10.1364/FIO.2020.JTH4B.30","DOIUrl":"https://doi.org/10.1364/FIO.2020.JTH4B.30","url":null,"abstract":"The output signal of Mach-Zehnder curvature sensor was Fourier transformed to increase its curvature range to high value of 1.69 m-1, relative to the traditional fringe contrast measurement 1.09 m-1.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76598109","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}
J. Martinez-Carranza, Rafał Kukołowicz, T. Kozacki
A phase added stereogram method that allows calculation of computer-generated holograms that have large horizontal parallax is developed. It is shown that our method can synthetize large holograms with high computational efficiency.
{"title":"Phase Added Stereogram for Calculation of Large Horizontal Parallax Only Computer-Generated Holograms","authors":"J. Martinez-Carranza, Rafał Kukołowicz, T. Kozacki","doi":"10.1364/FIO.2020.FW5A.2","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW5A.2","url":null,"abstract":"A phase added stereogram method that allows calculation of computer-generated holograms that have large horizontal parallax is developed. It is shown that our method can synthetize large holograms with high computational efficiency.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76665110","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}
We, for the first time, realize a type of soliton rain in a frequency-comb-tailored format that is partially depleted from a noise-like-pulse package in a fiber laser. This is enabled by incorporating a home-made micro-knot-resonator.
{"title":"Frequency-comb-tailored soliton rains","authors":"Junqing Zhao, Jian Zhou, Zikai Chen","doi":"10.1364/FIO.2020.FW7B.5","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW7B.5","url":null,"abstract":"We, for the first time, realize a type of soliton rain in a frequency-comb-tailored format that is partially depleted from a noise-like-pulse package in a fiber laser. This is enabled by incorporating a home-made micro-knot-resonator.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78097397","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}
M. Le, F. Salehi, L. Railing, L. Pascale, H. Milchberg
We observe the acceleration of electron bunches with a Lorentzian transverse profile using few-cycle laser pulses focused on the downstream side of a near-critical hydrogen gas jet.
我们利用聚焦在近临界氢气射流下游的少周期激光脉冲，观察了具有洛伦兹横剖面的电子束的加速。
{"title":"Transverse beam shape of laser-driven electron bunches","authors":"M. Le, F. Salehi, L. Railing, L. Pascale, H. Milchberg","doi":"10.1364/FIO.2020.FM4C.3","DOIUrl":"https://doi.org/10.1364/FIO.2020.FM4C.3","url":null,"abstract":"We observe the acceleration of electron bunches with a Lorentzian transverse profile using few-cycle laser pulses focused on the downstream side of a near-critical hydrogen gas jet.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78174788","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}
A. Pusala, D. Faccialà, P. Geetha, M. Musheghyan, G. Crippa, A. G. Ciriolo, M. Devetta, A. Assion, E. Cinquanta, S. Stagira, C. Vozzi
We investigate high-order harmonic generation (HHG) in ZnTe crystals driven by a mid-IR optical parametric amplifier as a function of the angle between the polarization direction of the driving laser field and the crystal axis.
研究了中红外光参量放大器驱动下ZnTe晶体的高次谐波产生与驱动激光场偏振方向与晶体轴夹角的关系。
{"title":"Angular dependence of high-order harmonic generation in ZnTe crystals","authors":"A. Pusala, D. Faccialà, P. Geetha, M. Musheghyan, G. Crippa, A. G. Ciriolo, M. Devetta, A. Assion, E. Cinquanta, S. Stagira, C. Vozzi","doi":"10.1364/FIO.2020.JW6A.3","DOIUrl":"https://doi.org/10.1364/FIO.2020.JW6A.3","url":null,"abstract":"We investigate high-order harmonic generation (HHG) in ZnTe crystals driven by a mid-IR optical parametric amplifier as a function of the angle between the polarization direction of the driving laser field and the crystal axis.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78540913","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}
Adriana C. Salazar Coariti, M. Fabien, J. Guzmán, K. Toussaint
2D pseudo-vector field maps are derived from second-harmonic generation images of bone. Measures adapted from fluid dynamics, such as enstrophy and tortuosity, quantitatively distinguish between images with and without Harvesian canals.
{"title":"Quantitative second-harmonic generation imaging analysis based on fluid-dynamics measures","authors":"Adriana C. Salazar Coariti, M. Fabien, J. Guzmán, K. Toussaint","doi":"10.1364/FIO.2020.FW5E.1","DOIUrl":"https://doi.org/10.1364/FIO.2020.FW5E.1","url":null,"abstract":"2D pseudo-vector field maps are derived from second-harmonic generation images of bone. Measures adapted from fluid dynamics, such as enstrophy and tortuosity, quantitatively distinguish between images with and without Harvesian canals.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75334124","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}
Collision dynamics of two counterpropagating moving Bragg grating solitons in two linearly coupled fiber Bragg gratings where both cores have cubic-quintic nonlinearity and dispersive reflectivity are investigated.
{"title":"Collision Dynamics of Solitons in a Coupled Nonuniform Fiber Bragg Gratings with Cubic-Quintic Nonlinearity","authors":"Afroja Akter, J. Atai","doi":"10.1364/FIO.2020.JW6A.4","DOIUrl":"https://doi.org/10.1364/FIO.2020.JW6A.4","url":null,"abstract":"Collision dynamics of two counterpropagating moving Bragg grating solitons in two linearly coupled fiber Bragg gratings where both cores have cubic-quintic nonlinearity and dispersive reflectivity are investigated.","PeriodicalId":91683,"journal":{"name":"Frontiers in optics. Annual Meeting of the Optical Society of America","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75344412","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}
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