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Interband cascade technology for energy-efficient mid-infrared free-space communication

Photonics Research 2023年第4期11卷 582-590页

作者： PIERRE DIDIER HEDWIG KNÖTIG OLIVIER SPITZ LAURENT CERUTTI ANNA LARDSCHNEIDER ELIE AWWAD DANIEL DIAZ-THOMAS ANBARANOV ROBERT WEIH JOHANNES KOETH benedikt schwarz FRÉDÉRIC GRILLOT LTCI Télécom Paris Institut Polytechnique de ParisPalaiseau 91120France mirSense Centre d’intégration NanoInnovPalaiseau 91120France Institute for Solid State Electronics TU Wien1040 ViennaAustria Currently with CREOL College of Optics and PhotonicsUniversity of Central FloridaOrlandoFlorida 32816USA Institut d’Electronique et des Systèmes Universitéde MontpellierCNRS UMR 5214Montpellier 34000France Nanoplus Nanosystems and Technologies GmbH 97218 GerbrunnGermany Center for High Technology Materials University of New MexicoAlbuquerqueNew Mexico 87106USA

Space-to-ground high-speed transmission is of utmost importance for the development of a worldwide broadband ***-infrared wavelengths offer numerous advantages for building such a system,spanning from low atmospheric attenuation to eye-safe operation and resistance to inclement weather *** demonstrate a full interband cascade system for high-speed transmission around a wavelength of 4.18μ*** low-power consumption of both the laser and the detector in combination with a large modulation bandwidth and sufficient output power makes this technology ideal for a free-space optical communication *** proof-of-concept experiment employs a radio-frequency optimized Fabry–Perot interband cascade laser and an interband cascade infrared photodetector based on a type-II InAs/GaSb *** bandwidth of the system is evaluated to be around 1.5 *** allows us to achieve data rates of 12 Gbit/s with an on–off keying scheme and 14 Gbit/s with a 4-level pulse amplitude modulation *** quality of the transmission is enhanced by conventional pre-and post-processing in order to be compatible with standard error-code correction.

关键词： communication system free

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微型移动式光谱技术集中式流量传感器光谱技术在现场分析中的应用

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实验与分析 2016年第1期 50-52页

作者： benedikt schwarz 维也纳技术大学微结构和纳米结构研究所

把实验室所有检测分析元器件都集成在一块光纤芯片上？是的。本文方案有诸多优势，那么在实施IR光谱检验最小化时，需要做些什么呢？

关键词：光谱技术流量传感器现场分析集中式移动式应用微型检测分析

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Screening agars for MRSA:evaluation of a stepwise diagnostic approach with two different selective agars for the screening for methicillin-resistant Staphylococcus aureus(MRSA)

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Military Medical Research 2015年第4期3卷 213-219页

作者： Volker Micheel benedikt Hogan Thomas Koller Philipp Warnke Sabine Crusius Rebecca Hinz Ralf Matthias Hagen Norbert Georg schwarz Hagen Frickmann Department of Tropical Medicine at the Bernhard Nocht Institute German Armed Forces Hospital of Hamburg Department of Infectious Disease Epidemiology Bernhard Nocht Institute for Tropical Medicine Hamburg Institute for Microbiology Virology and Hygiene University Medicine Rostock

Background: Colonization with methicillin-resistant Staphylococcus aureus(MRSA) poses a hygiene risk that does not spare field hospitals or military medical field camps during military deployments. Diagnostic options for unambiguously identifying MRSA isolates are usually scarce in military environments. In this study, we assessed the stepwise application of two different selective agars for the specific identification of MRSA in screening ***: Nasal swabs from 1,541 volunteers were subjected to thioglycollate broth enrichment and subsequently screened on CHROMagar MRSA selective agar for the identification of MRSA. The MRSA identity of suspiciouslooking colonies was confirmed afterwards or excluded by another selective agar, chrom ID MRSA. All isolates from the selective agars with MRSA-specific colony morphology were identified by biochemical methods and mass ***: The initial CHROMagar MRSA screening identified suspicious colonies in 36 out of 1541 samples. A total of 25 of these 36 isolates showed MRSA-like growth on chrom ID agar. Out of these 25 isolates, 24 were confirmed as MRSA, while one isolate was identified as Staphylococcus kloosii. From the 11 strains that did not show suspicious growth on chrom ID agar, 3 were methicillin-sensitive Staphylococcus aureus(MSSA, with one instance of cocolonization with Corynebacterium spp.), 2 were confirmed as MRSA(with 1 instance of co-colonization with MSSA), 2 were lost during passaging and could not be re-cultured, one could not be identified by the applied approaches, and the remaining 3 strains were identified as Staphylococcus saprophyticus, Staphylococcus hominis(co-colonized with Macrococcus caseolyticus) and Staphylococcus cohnii, ***: The application of the selective agar CHROMagar MRSA alone proved to be too non-specific to allow for a reliable diagnosis of the presence of MRSA. The combined use of two selective agars in a stepwise approach reduced this non-s

关键词： Methicillin-resistant Staphylococcus aureus Selective agar Chromogenic agar Screening Hygiene Stepwise diagnostics CHROMagar Chrom ID agar

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