Laser Spectroscopic Trace-Gas Sensor Networks for Atmospheric Monitoring Applications Stephen So

Ardalan Amiri Sani, Lin Zhong, Frank Tittel

Gerard Wysocki

Princeton University B321 EQuad Princeton, NJ 08540 609-258-8948

Rice University 6100 S. Main St. MS366 Houston, TX 77005 713-348-4833

Princeton University B321 EQuad Princeton, NJ 08540 609-258-8187

[email protected]

{aa15, lzhong, fkt}@rice.edu

[email protected]

ABSTRACT Laser-based atmospheric trace-gas sensors have great potential for long-term, real-time, maintenance free environmental monitoring in distributed Wireless Sensor Networks (WSN). We are developing a laser based chemical sensing technology with wide-area autonomous wireless sensor networking as the final target. Our prototype sensor measures atmospheric oxygen concentration in the form of a battery powered, handheld unit with power consumption