Abstract
We demonstrate a technique for gas phase spectroscopy and sensing by detecting changes in compliance voltage of an external cavity quantum cascade laser due to intracavity absorption. The technique is characterized and used to measure the absorption spectrum of water vapor and Freon-134a.
©2012 Optical Society of America
Full Article | PDF ArticleMore Like This
Brian E. Brumfield, Matthew S. Taubman, Jonathan D. Suter, and Mark C. Phillips
Opt. Express 23(20) 25553-25569 (2015)
Mark C. Phillips, Tanya L. Myers, Michael D. Wojcik, and Bret D. Cannon
Opt. Lett. 32(9) 1177-1179 (2007)
Mark C. Phillips, Bruce E. Bernacki, Sivanandan S. Harilal, Jeremy Yeak, and R. Jason Jones
Opt. Express 28(5) 7408-7424 (2020)