Sub-ppbv nitric oxide concentration measurements using cw thermoelectrically cooled quantum cascade laser-based integrated cavity output spectroscopyY.A. Bakhirkin; A.A. Kosterev; R.F. Curl; F.K. Tittel; D.A. Yarekha; L. Hvozdara; M. Giovannini; J. Faist · 2006

SPIE Proceedings [SPIE Environmental and Industrial Sensing - Boston, MA (Sunday 28 October 2001)] Vibrational Spectroscopy-based Sensor Systems - <title>Infrared cavity ringdown and integrated cavity output spectroscopy for trace species monitoring</title>Paul, Joshua B.; Scherer, James J.; O'Keefe, Anthony; Lapson, Larry; Anderson, Janelle R.; Gmachl, Claire F.; Capasso, Federico; Cho, Alfred Y.; Christesen, Steven D.; Sedlacek III, Arthur J. · 2002