COLORADO STATE UNIVERSITY: NEW AWARD CONTROL# 2784-1867 DE-FOA-0002784 EXPLORATORY TOPICS M(H2SENSE) PROJECT TITLE: HYDROGEN EMISSIONS MONITORING SYSTEM BASED ON TRACE GAS PARS SENSOR THE PURPOSE OF THIS PROJECT IS TO DEVELOP AND VALIDATE AN H2 POINT SENSOR BASED ON PHOTOACOUSTIC STIMULATED RAMAN SPECTROSCOPY (PARS) FOR TRACE DETECTION OF H2 IN THE ATMOSPHERE WITH LOWER DETECTION LIMIT (LDL) OF 1 PART-PER-MILLION IN 5 SECONDS (200 PARTS- PER-BILLION IN 2 MINUTES ALSO POSSIBLE).