Standoff handheld real-time early warning detector (SHREWD)

Joseph M. Fukumoto; David G. Lim; David B. Cohn; Jay A. Fox; Cynthia R. Swim

doi:10.1117/12.394067

28 July 2000 Standoff handheld real-time early warning detector (SHREWD)

Joseph M. Fukumoto, David G. Lim, David B. Cohn, Jay A. Fox, Cynthia R. Swim

Proceedings Volume 4036, Chemical and Biological Sensing; (2000) https://doi.org/10.1117/12.394067
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

A lightweight, compact sensor breadboard demonstrator is being developed that will be capable of detecting chemical agents in the 8 - 12 micrometers band by DIAL for ranges on the order of 4 km. Engineering analysis shows that the overall sensor size and weight would be approximately 1 cu. ft. and 35 lbs., respectively. The sensor is composed of a 12.5 cm diameter, off-axis paraboloid receive telescope and a 300 Hz repetition rate solid-state laser transmitter. The transmitter is based on a diode-pumped, 1.06 micrometers laser with an output energy of 20 mJ and two cascaded OPO stages that shift the laser wavelength to the far IR bands. The first stage OPO is configured in an arrangement that shifts the laser output to beyond 2 micrometers . The second stage OPO completes the shift to the 8 - 12 micrometers band, giving an overall 1.06 (mu) $m yields 8 - 12 micrometers conversion efficiency of 2% and a sensor output power of 0.1 W.

Citation Download Citation

Joseph M. Fukumoto, David G. Lim, David B. Cohn, Jay A. Fox, and Cynthia R. Swim "Standoff handheld real-time early warning detector (SHREWD)", Proc. SPIE 4036, Chemical and Biological Sensing, (28 July 2000); https://doi.org/10.1117/12.394067

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available