Share Email Print
cover

Proceedings Paper

Next generation infrared sensor instrumentation: remote sensing and sensor networks using the openPHOTONS repository
Author(s): Stephen So; Evan Jeng; Clinton Smith; David Krueger; Gerard Wysocki
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We describe our novel instrumentation architectures for infrared laser spectrometers. Compact, power efficient, low noise modules allow for optimized implementation of cell phone sized sensors using VCSELs, diode, and quantum cascade laser sources. These sensors can consume as little as 0.3W with full laser temperature (<0.001K/Hz1/2) and current control (<2ppm/Hz1/2 noise), photodiode preamplification (<2pA/Hz1/2 noise floor, 1MΩ transimpedance), and digital lock-in amplification with 3 independent channels. We have implemented sensors based on laser absorption spectroscopy, photoacoustic spectroscopy, and Faraday rotation spectroscopy using the openPHOTONS systems, with performance rivaling standalone laboratory measurement instrumentation. Additionally, as openPHOTONS is an open source software repository, this instrumentation can be quickly adapted to new optical configurations and applications. Such modules allow the development of flexible sensors, whether implementing closed path spectrometers, open path perimeter monitoring, or remote backscatter based sensors. This work is also the enabling technology for wireless sensor networks (WSN) of precision sensors, a desirable sensing paradigm for long term, wide area, precision, temporally and spatially resolved studies. This approach can complement existing remote sensing and mapping technologies including satellite observations and sparse networks of flux towers.

Paper Details

Date Published: 28 August 2010
PDF: 6 pages
Proc. SPIE 7808, Infrared Remote Sensing and Instrumentation XVIII, 780818 (28 August 2010); doi: 10.1117/12.861505
Show Author Affiliations
Stephen So, Princeton Univ. (United States)
Evan Jeng, Princeton Univ. (United States)
Clinton Smith, Princeton Univ. (United States)
David Krueger, Princeton Univ. (United States)
Gerard Wysocki, Princeton Univ. (United States)


Published in SPIE Proceedings Vol. 7808:
Infrared Remote Sensing and Instrumentation XVIII
Marija Strojnik; Gonzalo Paez, Editor(s)

© SPIE. Terms of Use
Back to Top