Pub Date : 2019-08-01DOI: 10.1109/rapid.2019.8864315
P. Panagiotopoulos, P. Rosenow, S. Tochitsky, S. Koch, E. W. Wright, M. Kolesik, J. Moloney
We investigate the atmospheric propagation of high power 10μm — picosecond laser pulses over multi-km distances in the atmosphere. We predict that 10μm atmospheric filaments have noteworthy advantages when compared their shorter wavelengths counterparts, which are expected to have important impact in future applications.
{"title":"10 Micron Filaments in the Atmosphere: Modeling Perspective","authors":"P. Panagiotopoulos, P. Rosenow, S. Tochitsky, S. Koch, E. W. Wright, M. Kolesik, J. Moloney","doi":"10.1109/rapid.2019.8864315","DOIUrl":"https://doi.org/10.1109/rapid.2019.8864315","url":null,"abstract":"We investigate the atmospheric propagation of high power 10μm — picosecond laser pulses over multi-km distances in the atmosphere. We predict that 10μm atmospheric filaments have noteworthy advantages when compared their shorter wavelengths counterparts, which are expected to have important impact in future applications.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121113876","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864421
E. Chong, C. Haughn, Angela Zeigler, S. Kelley, K. Olver, Jeremy L. Smith, J. Cabalo, Young-jin Koh, M. Wraback, G. Garrett, A. Sampath
Development of 4H-SiC single photon avalanche detectors for replacement of photomultiplier tubes in ultraviolet light induced fluorescence systems is discussed. Systems capable of detecting micro-scale airborne particles have been demonstrated. The impact of measured dark count rate and its relation to single-photon detection efficiency on detector design is discussed.
{"title":"4H-SiC Single Photon Detector for Detection of Individual Airborne Particles in Light Induced Fluorscence Systems","authors":"E. Chong, C. Haughn, Angela Zeigler, S. Kelley, K. Olver, Jeremy L. Smith, J. Cabalo, Young-jin Koh, M. Wraback, G. Garrett, A. Sampath","doi":"10.1109/RAPID.2019.8864421","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864421","url":null,"abstract":"Development of 4H-SiC single photon avalanche detectors for replacement of photomultiplier tubes in ultraviolet light induced fluorescence systems is discussed. Systems capable of detecting micro-scale airborne particles have been demonstrated. The impact of measured dark count rate and its relation to single-photon detection efficiency on detector design is discussed.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116728950","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864378
J. Schuller
Semiconductor quantum wells underpin a great number of modern optoelectronics technologies. Here, we demonstrate directional photoluminescence arising from: 1) magnetic dipole transitions in layered two-dimensional hybrid organic-inorganic perovskite quantum wells and 2) phased array GaN quantum well metasurfaces.
{"title":"Multipole and Metasurface Quantum Well Emitters","authors":"J. Schuller","doi":"10.1109/RAPID.2019.8864378","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864378","url":null,"abstract":"Semiconductor quantum wells underpin a great number of modern optoelectronics technologies. Here, we demonstrate directional photoluminescence arising from: 1) magnetic dipole transitions in layered two-dimensional hybrid organic-inorganic perovskite quantum wells and 2) phased array GaN quantum well metasurfaces.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123345709","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864229
F. J. González, R. Peale, S. Benis, D. Hagan, E. V. Van Stryland
Fast optical limiters are needed to protect sensors from intense short laser pulses. An optical limiter design based on a conducting-oxide grating with a large nonlinear refractive index at the plasma frequency is proposed and investigated.
{"title":"Optical Limiter using Epsilon-Near-Zero Grating","authors":"F. J. González, R. Peale, S. Benis, D. Hagan, E. V. Van Stryland","doi":"10.1109/RAPID.2019.8864229","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864229","url":null,"abstract":"Fast optical limiters are needed to protect sensors from intense short laser pulses. An optical limiter design based on a conducting-oxide grating with a large nonlinear refractive index at the plasma frequency is proposed and investigated.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130708668","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864287
Christopher Jackson, Tyler Browning, A. Landwehr, Daniel May, Hamzah Ahmed, Andrea Waite, F. Kiamilev
Traditional display protocols have limitations in terms of fixed refresh-rates, high bandwidth requirements, and control over the display of frames. This paper demonstrates the performance results of an alternative approach utilizing a packetized display protocol architecture incorporating dynamic refresh-rates, high-speed capabilities, to bridge performance gaps.
{"title":"Demonstration of Packetized Display Protocol (PDP) to Overcome Speed and Resolution Limitations of Conventional Display Protocols","authors":"Christopher Jackson, Tyler Browning, A. Landwehr, Daniel May, Hamzah Ahmed, Andrea Waite, F. Kiamilev","doi":"10.1109/RAPID.2019.8864287","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864287","url":null,"abstract":"Traditional display protocols have limitations in terms of fixed refresh-rates, high bandwidth requirements, and control over the display of frames. This paper demonstrates the performance results of an alternative approach utilizing a packetized display protocol architecture incorporating dynamic refresh-rates, high-speed capabilities, to bridge performance gaps.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129264719","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864301
J. Park, A. Ndao, W. Cai, L. Hsu, A. Kodigala, T. Lepetit, Y. Lo, B. Kanté
Non-Hermitian singularities known as exceptional-points (EPs) have been shown to exhibit increased sensitivities but the observation of EPs has so far been limited to wavelength scaled systems subject to diffraction limit. We propose a novel approach to EPs and report their first observation in plasmonics at room temperature. The plasmonic EPs are based on the hybridization of resonances in multilayered plasmonic crystals to reach a critical complex coupling rate between nanoantennas arrays, and, resulting in the simultaneous coalescence of the resonances and loss rates. Because plasmons shrink the wavelength of light to make it compatible with biological relevant substances, enhanced sensing of anti-Immunoglobulin G, the most common antibody found in blood circulation, is observed at attomolar concentration. Our work opens the way to novel class of nanoscale devices, sensors, and imagers based on topological polaritonic effects.
{"title":"Observation of Exceptional-Points in Plasmonics","authors":"J. Park, A. Ndao, W. Cai, L. Hsu, A. Kodigala, T. Lepetit, Y. Lo, B. Kanté","doi":"10.1109/RAPID.2019.8864301","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864301","url":null,"abstract":"Non-Hermitian singularities known as exceptional-points (EPs) have been shown to exhibit increased sensitivities but the observation of EPs has so far been limited to wavelength scaled systems subject to diffraction limit. We propose a novel approach to EPs and report their first observation in plasmonics at room temperature. The plasmonic EPs are based on the hybridization of resonances in multilayered plasmonic crystals to reach a critical complex coupling rate between nanoantennas arrays, and, resulting in the simultaneous coalescence of the resonances and loss rates. Because plasmons shrink the wavelength of light to make it compatible with biological relevant substances, enhanced sensing of anti-Immunoglobulin G, the most common antibody found in blood circulation, is observed at attomolar concentration. Our work opens the way to novel class of nanoscale devices, sensors, and imagers based on topological polaritonic effects.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130188958","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864374
Ethan Tu, L. Begdache, Daehan Won, Ahyeon Koh
A 21-subject pilot study was conducted in which apocrine and eccrine sweat was collected from healthy male (n = 7) and female (n = 14) individuals during aerobic exercise. Sweat from participants was analyzed using a blue tetrazolium reaction to determine cortisol concentration. The study revealed a significant difference between male and female apocrine cortisol concentration (p-value = 0.044), a highly significant difference between birth control (BC) using females and non-birth control using females (p-value = 0.015), as well as a highly significant difference between apocrine and eccrine cortisol concentration (p-value = 0.000044). A positive correlation between cortisol and Kessler 10 scores, protein, simple carbohydrates, fat, and calorie consumption in BC users, as well as a negative correlation between cortisol and simple carbohydrates, fat, and calorie consumption in non-BC users were found. This pilot study revealed a key association between diet and cortisol that may help individuals lower their normal cortisol levels and therefore prevent stress related illnesses.
{"title":"Sweat cortisol response to stress, macronutrient consumption and birth control","authors":"Ethan Tu, L. Begdache, Daehan Won, Ahyeon Koh","doi":"10.1109/RAPID.2019.8864374","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864374","url":null,"abstract":"A 21-subject pilot study was conducted in which apocrine and eccrine sweat was collected from healthy male (n = 7) and female (n = 14) individuals during aerobic exercise. Sweat from participants was analyzed using a blue tetrazolium reaction to determine cortisol concentration. The study revealed a significant difference between male and female apocrine cortisol concentration (p-value = 0.044), a highly significant difference between birth control (BC) using females and non-birth control using females (p-value = 0.015), as well as a highly significant difference between apocrine and eccrine cortisol concentration (p-value = 0.000044). A positive correlation between cortisol and Kessler 10 scores, protein, simple carbohydrates, fat, and calorie consumption in BC users, as well as a negative correlation between cortisol and simple carbohydrates, fat, and calorie consumption in non-BC users were found. This pilot study revealed a key association between diet and cortisol that may help individuals lower their normal cortisol levels and therefore prevent stress related illnesses.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124411340","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864396
S. Dev, Yinan Wang, Yimeng Wang, Jeffery W. Allen, M. Allen, E. Tutuc, D. Wasserman
In this paper, we present the microwave resonator photoconductor (MRPC), a photoconductive detector architecture which couples an active mid-infrared pixel to a Ku band microwave resonator. We compare the room temperature sensitivity of our MRPC to a standard photoconductor, and discuss the potential advantages.
{"title":"Mid-Infrared Detection using a Microwave Resonator Photoconductive Architecture","authors":"S. Dev, Yinan Wang, Yimeng Wang, Jeffery W. Allen, M. Allen, E. Tutuc, D. Wasserman","doi":"10.1109/RAPID.2019.8864396","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864396","url":null,"abstract":"In this paper, we present the microwave resonator photoconductor (MRPC), a photoconductive detector architecture which couples an active mid-infrared pixel to a Ku band microwave resonator. We compare the room temperature sensitivity of our MRPC to a standard photoconductor, and discuss the potential advantages.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122865708","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864343
D. Sounas
This paper presents a nonreciprocal grating based on graphene strips on top of a dielectric substrate for THz frequencies. Nonreciprocity is achieved by applying a directional temporal modulation with different phases to different graphene strips of the grating. Quite importantly, only three distinct modulation regions are necessary to achieve strong nonreciprocity, relaxing the fabrication requirements. Simulation results show very large isolation with moderate insertion loss for realistic parameters for graphene, making the proposed structure suitable for practical applications at THz frequencies.
{"title":"Non-Reciprocal Graphene Gratings Based on Spatiotemporal Modulation","authors":"D. Sounas","doi":"10.1109/RAPID.2019.8864343","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864343","url":null,"abstract":"This paper presents a nonreciprocal grating based on graphene strips on top of a dielectric substrate for THz frequencies. Nonreciprocity is achieved by applying a directional temporal modulation with different phases to different graphene strips of the grating. Quite importantly, only three distinct modulation regions are necessary to achieve strong nonreciprocity, relaxing the fabrication requirements. Simulation results show very large isolation with moderate insertion loss for realistic parameters for graphene, making the proposed structure suitable for practical applications at THz frequencies.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"320 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114090909","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864428
M. Anthamatten, T. Baur, Shaw H. Chen
Our recent accomplishments in the development and application of cholesteric glassy liquid crystals, Ch-GLCs, are appraised for circular polarization with adjustable spectral region and bandwidth. Micron-thick Ch-GLC films are a prime candidate for the fabrication of one-way circular polarizers in support of color day camera.
{"title":"Cholesteric Glassy Liquid Crystals for Photonics","authors":"M. Anthamatten, T. Baur, Shaw H. Chen","doi":"10.1109/RAPID.2019.8864428","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864428","url":null,"abstract":"Our recent accomplishments in the development and application of cholesteric glassy liquid crystals, Ch-GLCs, are appraised for circular polarization with adjustable spectral region and bandwidth. Micron-thick Ch-GLC films are a prime candidate for the fabrication of one-way circular polarizers in support of color day camera.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122666941","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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