NDLI: Surface emitting ring quantum cascade lasers for chemical sensing

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Surface emitting ring quantum cascade lasers for chemical sensing

Content Provider	Semantic Scholar
Author	Hayden, Jakob Martín-Mateos, Pedro Holzbauer, Martin Harrer, Andreas Schwarz, Benedikt Hinkov, Borislav Farland, Donald C. Mac Zederbauer, Tobias Detz, Hermann Andrews, Aaron Maxwell Schrenk, Werner
Copyright Year	2017
Abstract	We review recent advances in chemical sensing applications based on surface emitting ring quantum cascade lasers (QCLs). Such lasers can be implemented in monolithically integrated on-chip laser/detector devices forming compact gas sensors, which are based on direct absorption spectroscopy according to the Beer–Lambert law. Furthermore, we present experimental results on radio frequency modulation up to 150 MHz of surface emitting ring QCLs. This technique provides detailed insight into the modulation characteristics of such lasers. The gained knowledge facilitates the utilization of ring QCLs in combination with spectroscopic techniques, such as heterodyne phase-sensitive dispersion spectroscopy for gas detection and analysis. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. [DOI: 10.1117/1.OE.57.1.011005]
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://publik.tuwien.ac.at/files/publik_261063.pdf
Alternate Webpage(s)	https://ebooks.spiedigitallibrary.org/journalArticle/Download?fullDOI=10.1117/1.OE.57.1.011005
Language	English
Access Restriction	Open
Subject Keyword	Cascade Device Component Detectors Digital Object Identifier Gain Heterodyne Lambert's cosine law Megahertz Modulation Quantum Cascade Lasers Radio frequency attribution sensor (device)
Content Type	Text
Resource Type	Article

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