期刊
ACS PHOTONICS
卷 3, 期 10, 页码 1794-1798出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.6b00603
关键词
quantum cascade laser; quantum cascade detector; sensor; on-chip; monolithic integration
类别
资金
- Austrian Science Fund project Next-Lite [FWF: F49-P09]
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.
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