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Remote Sensing with Commutable Monolithic Laser and Detector

delete2016-10-07
delete26
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OA
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R
Rolf Szedlak *
A
Andreas Harrer
M
Martin Holzbauer
B
Benedikt Schwarz
J
Johannes P. Waclawek
D
Donald MacFarland
T
Tobias Zederbauer
H
Hermann Detz
A
A. M. Andrews
W
W. Schrenk
B
Bernhard Lendl
G
G. Strasser
DOI:10.1021/acsphotonics.6b00603delete
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Abstract

Abstract

En 中文
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.
Keywords:
quantum cascade laser
quantum cascade detector
sensor
on-chip
monolithic integration
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Journal

ACS Photonics cover
ACS Photonics
IF:
6.7
Papers:
5.6K
Citations:
2.5W

Organization

A
Austrian Academy of Sciences
Scholars:
5.0K
Papers: 4.0K
Citations: 8.2K
T
Technische Universitat Wien
Scholars:
1.3W
Papers: 1.1W
Citations: 21