Pub Date : 2020-08-01DOI: 10.1109/rapid49481.2020.9195670
M. Ordu, A. Akosman, Jicheng Guo, S. Erramilli, S. Ramachandran, S. Basu
Si-Ge alloy-core silica-cladded fibers were drawn at a low temperature to minimize impurity diffusion. The elemental segregation in the as-drawn fibers was overcome by a thermal treatment. The transmission losses of the fibers were calculated as 28 dB/cm at $6.1 mu mathrm{m}$ wavelength.
在低温下拉伸硅锗合金芯硅包覆纤维，以减少杂质扩散。通过热处理克服了拉伸纤维中的元素偏析。计算光纤在$6.1 mu mathm {m}$波长下的传输损耗为28 dB/cm。
{"title":"Step-index Si-Ge-core silica-cladded optical fibers","authors":"M. Ordu, A. Akosman, Jicheng Guo, S. Erramilli, S. Ramachandran, S. Basu","doi":"10.1109/rapid49481.2020.9195670","DOIUrl":"https://doi.org/10.1109/rapid49481.2020.9195670","url":null,"abstract":"Si-Ge alloy-core silica-cladded fibers were drawn at a low temperature to minimize impurity diffusion. The elemental segregation in the as-drawn fibers was overcome by a thermal treatment. The transmission losses of the fibers were calculated as 28 dB/cm at $6.1 mu mathrm{m}$ wavelength.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133018633","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195667
G. Forcherio, T. Morgan, Scott G. Criswell, D. Kozak, J. Valentine, J. Caldwell, B. Conley
Surface plasmon resonance transduces photons into energetically “hot” electrons, which provides new Schottky-based platforms for infrared photodetectors without need for cooling infrastructure. Material design principles towards a multiphysics computation tool are presented where performance is governed by plasmonic activity, density-of-states, and the Schottky barrier.
{"title":"Designing Plasmonic Hot Carrier Devices for Uncooled Infrared Photodetection","authors":"G. Forcherio, T. Morgan, Scott G. Criswell, D. Kozak, J. Valentine, J. Caldwell, B. Conley","doi":"10.1109/RAPID49481.2020.9195667","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195667","url":null,"abstract":"Surface plasmon resonance transduces photons into energetically “hot” electrons, which provides new Schottky-based platforms for infrared photodetectors without need for cooling infrastructure. Material design principles towards a multiphysics computation tool are presented where performance is governed by plasmonic activity, density-of-states, and the Schottky barrier.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116591341","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195694
Natalia Múnera, Salimeh Tofighi, D. Hagan, E. W. Stryland
Ultrafast response function of air is used to predict the pulsewidth dependence of the effective nonlinear refractive index from our measurements done in the near and mid-infrared, which shows no dispersion. Pulsewidth dependence of the effective nonlinear refractive index prediction at different altitudes was done.
{"title":"Nonlinear refractive index pulsewidth dependence in the atmosphere","authors":"Natalia Múnera, Salimeh Tofighi, D. Hagan, E. W. Stryland","doi":"10.1109/RAPID49481.2020.9195694","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195694","url":null,"abstract":"Ultrafast response function of air is used to predict the pulsewidth dependence of the effective nonlinear refractive index from our measurements done in the near and mid-infrared, which shows no dispersion. Pulsewidth dependence of the effective nonlinear refractive index prediction at different altitudes was done.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115938776","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 : 2020-08-01DOI: 10.1109/rapid49481.2020.9195683
J. Warrender, P. Chow, S. Lim, G. Grzybowski, B. Claflin, James S. Williams
Incorporating impurities into group IV materials can form hyperdoped or alloyed layers with enhanced device response at infrared wavelengths otherwise inaccessible in such materials. Processing parameters can influence the layers’ performance; this, along with the CMOS compatibility, makes them a promising platform for IR optoelectronics.
{"title":"Novel group IV materials for infrared sensing through pulsed laser melting","authors":"J. Warrender, P. Chow, S. Lim, G. Grzybowski, B. Claflin, James S. Williams","doi":"10.1109/rapid49481.2020.9195683","DOIUrl":"https://doi.org/10.1109/rapid49481.2020.9195683","url":null,"abstract":"Incorporating impurities into group IV materials can form hyperdoped or alloyed layers with enhanced device response at infrared wavelengths otherwise inaccessible in such materials. Processing parameters can influence the layers’ performance; this, along with the CMOS compatibility, makes them a promising platform for IR optoelectronics.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121219468","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 : 2020-08-01DOI: 10.1109/rapid49481.2020.9195661
J. Elle, A. Englesbe, T. Garrett, A. Janicek, A. Lucero, A. Schmitt-Sody, E. Thornton
The unique electron distribution, timescales and geometry of ultrashort pulse laser generated plasmas are a novel source of radio-frequency electromagnetic emission, with a bandwidth larger than 70 GHz. To identify the emission mechanism, we characterize the RF signal for a wide variety of experimental conditions.
{"title":"Decade spanning radiofrequency emission from ultrashort laser generated plasma","authors":"J. Elle, A. Englesbe, T. Garrett, A. Janicek, A. Lucero, A. Schmitt-Sody, E. Thornton","doi":"10.1109/rapid49481.2020.9195661","DOIUrl":"https://doi.org/10.1109/rapid49481.2020.9195661","url":null,"abstract":"The unique electron distribution, timescales and geometry of ultrashort pulse laser generated plasmas are a novel source of radio-frequency electromagnetic emission, with a bandwidth larger than 70 GHz. To identify the emission mechanism, we characterize the RF signal for a wide variety of experimental conditions.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116349491","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 : 2020-08-01DOI: 10.1109/rapid49481.2020.9195657
P. Petluru, Z. Dong, L. Nordin, A. Kamboj, D. Wasserman
We present the design and simulation of long-wave infrared detectors consisting of a doped-semiconductor ground plane underneath a thin Type-II superlattice (T2SL), patterned with a metallic antenna. We demonstrate enhanced absorption at the absorber band-edge, spectrally tuned by the geometry of the Au pattern.
{"title":"Engineering the Spectral Response of Long-Wave Infrared Detectors","authors":"P. Petluru, Z. Dong, L. Nordin, A. Kamboj, D. Wasserman","doi":"10.1109/rapid49481.2020.9195657","DOIUrl":"https://doi.org/10.1109/rapid49481.2020.9195657","url":null,"abstract":"We present the design and simulation of long-wave infrared detectors consisting of a doped-semiconductor ground plane underneath a thin Type-II superlattice (T2SL), patterned with a metallic antenna. We demonstrate enhanced absorption at the absorber band-edge, spectrally tuned by the geometry of the Au pattern.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116355606","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195707
L. Velmanickam, I. T. Lima, D. Nawarathna
We have demonstrated that AC electric fields can be used to amplify the intensity of fluorophore molecules. AC electric fields enhance the metal-fluorophore-light interactions, which produce significant enhancements of fluorescence intensities. This concept can be applied to developing sensitive biosensors for clinical applications.
{"title":"Achieving over million-fold fluorescence enhancement for biosensing applications","authors":"L. Velmanickam, I. T. Lima, D. Nawarathna","doi":"10.1109/RAPID49481.2020.9195707","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195707","url":null,"abstract":"We have demonstrated that AC electric fields can be used to amplify the intensity of fluorophore molecules. AC electric fields enhance the metal-fluorophore-light interactions, which produce significant enhancements of fluorescence intensities. This concept can be applied to developing sensitive biosensors for clinical applications.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123844022","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195708
Matthew J. Burfeindt, H. Alqadah
We present a new formulation of the Linear Sampling Method (LSM) for imaging conducting targets from spatially sparse data acquisitions. The technique mitigates the lack of spatial channels by introducing a priori information into the problem formulation related to the electric field boundary conditions on the unknown target boundary. We apply the proposed technique to simulated data and demonstrate improved image fidelity relative to the standard LSM.
{"title":"Enhancement of Linear Sampling Method imaging of conducting targets using a boundary condition constraint","authors":"Matthew J. Burfeindt, H. Alqadah","doi":"10.1109/RAPID49481.2020.9195708","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195708","url":null,"abstract":"We present a new formulation of the Linear Sampling Method (LSM) for imaging conducting targets from spatially sparse data acquisitions. The technique mitigates the lack of spatial channels by introducing a priori information into the problem formulation related to the electric field boundary conditions on the unknown target boundary. We apply the proposed technique to simulated data and demonstrate improved image fidelity relative to the standard LSM.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115852704","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195701
D. Onori, J. Azaña
We propose a novel architecture of dual-frequency coherent noise ladar for simultaneous range and velocity measurements. The dual-frequency noise technique allows a simplified hardware implementation and uses a fast 1D (time) cross-correlation-based detection instead of a conventional and computation-intensive 2D (time and frequency) alternative.
{"title":"A Simple Dual-Frequency Coherent Noise Ladar","authors":"D. Onori, J. Azaña","doi":"10.1109/RAPID49481.2020.9195701","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195701","url":null,"abstract":"We propose a novel architecture of dual-frequency coherent noise ladar for simultaneous range and velocity measurements. The dual-frequency noise technique allows a simplified hardware implementation and uses a fast 1D (time) cross-correlation-based detection instead of a conventional and computation-intensive 2D (time and frequency) alternative.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114111919","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 : 2020-08-01DOI: 10.1109/RAPID49481.2020.9195685
P. Simmonds
Discovered recently, tensile-strained quantum dots are optically active, defect-free nanostructures. Large tensile strains allow us to tailor band structures for applications from tunable infrared emitters to entangled photon sources. I will discuss the history, current state-of-the-art, and future directions of this rapidly expanding research field.
{"title":"Tensile-strained self-assembly: Tunable nanomaterials for infrared optoelectronics and quantum optics","authors":"P. Simmonds","doi":"10.1109/RAPID49481.2020.9195685","DOIUrl":"https://doi.org/10.1109/RAPID49481.2020.9195685","url":null,"abstract":"Discovered recently, tensile-strained quantum dots are optically active, defect-free nanostructures. Large tensile strains allow us to tailor band structures for applications from tunable infrared emitters to entangled photon sources. I will discuss the history, current state-of-the-art, and future directions of this rapidly expanding research field.","PeriodicalId":220244,"journal":{"name":"2020 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125703992","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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