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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.

SUBMITTER: Szedlak R 

PROVIDER: S-EPMC5073946 | biostudies-literature |

REPOSITORIES: biostudies-literature

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