可互换单片激光器和探测器的遥感技术。

Remote Sensing with Commutable Monolithic Laser and Detector.

作者信息

Szedlak Rolf, Harrer Andreas, Holzbauer Martin, Schwarz Benedikt, Waclawek Johannes Paul, MacFarland Donald, Zederbauer Tobias, Detz Hermann, Andrews Aaron Maxwell, Schrenk Werner, Lendl Bernhard, Strasser Gottfried

机构信息

Institute of Solid State Electronics & Center for Micro- and Nanostructures, TU Wien , Floragasse 7, 1040 Vienna, Austria.

Institute of Chemical Technologies and Analytics, TU Wien , Getreidemarkt 9/164, 1060 Vienna, Austria.

出版信息

ACS Photonics. 2016 Oct 19;3(10):1794-1798. doi: 10.1021/acsphotonics.6b00603. Epub 2016 Oct 5.

DOI:10.1021/acsphotonics.6b00603

PMID:27785455

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5073946/

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.

摘要

小型化传感系统的普遍趋势需要用于紧凑且通用的光谱工具的新颖概念。传统的光学传感装置包括光源、分析物相互作用区域和单独的外部探测器。我们展示了一种紧凑的传感器，它能在室温下运行集成在同一芯片上的单片表面活性激光器和探测器。消除了发射器和探测器之间的区别，这实现了相互转换。展示了检测限低于400 ppm的原理验证气体测量。这一概念实现了传感设备的关键小型化。