title: Remote Sensing with Commutable Monolithic Laser and Detector.
abstract: The ubiquitous trend toward miniaturized sensing systems demands novel concepts for compact and versatile spectroscopic tools. Conventional optical sensing setups include a light source, an analyte interaction region, and a separate external detector. We present a compact sensor providing room-temperature operation of monolithic surface-active lasers and detectors integrated on the same chip. The differentiation between emitter and detector is eliminated, which enables mutual commutation. Proof-of-principle gas measurements with a limit of detection below 400 ppm are demonstrated. This concept enables a crucial miniaturization of sensing devices.
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Rolf
authors: R
authors: Szedlak
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Andreas
authors: A
authors: Harrer
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Martin
authors: M
authors: Holzbauer
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Benedikt
authors: B
authors: Schwarz
authors: Institute of Chemical Technologies and Analytics, TU Wien , Getreidemarkt 9/164, 1060 Vienna, Austria.
authors: Johannes Paul
authors: JP
authors: Waclawek
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Donald
authors: D
authors: MacFarland
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Tobias
authors: T
authors: Zederbauer
authors: Austrian Academy of Sciences , Dr. Ignaz Seipel-Platz 2, 1010 Vienna, Austria.
authors: Hermann
authors: H
authors: Detz
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Aaron Maxwell
authors: AM
authors: Andrews
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Werner
authors: W
authors: Schrenk
authors: Institute of Chemical Technologies and Analytics, TU Wien , Getreidemarkt 9/164, 1060 Vienna, Austria.
authors: Bernhard
authors: B
authors: Lendl
authors: Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.
authors: Gottfried
authors: G
authors: Strasser
keywords: monolithic integration; on-chip; quantum cascade detector; quantum cascade laser; sensor