Photoacoustic Approach Using a Broadband Laser Source for Sensing Carbon Monoxide and Carbon Dioxide

Date Issued
01-01-2022
Author(s)
Kumar, Saran K.
Vidhya, Ester Blesso Y.
Selvaraj, Ramya
Indian Institute of Technology, Madras
Indian Institute of Technology, Madras
Abstract
Supercontinuum laser-based broadband photoacoustic technique is demostrated for sensing CO, CO2 and H2O around 2µm. The detection limit of 6 ppm, 736 ppm and 20 ppb respectively, is attained with SNR of 3 dB.