Title :
Large amplitude wavelength modulation spectroscopy for sensitive measurements of broad absorbers
Author :
Hayden, T.R.S. ; Schroeder, P.J. ; Rieker, G.B.
Author_Institution :
Univ. of Colorado-Boulder, Boulder, CO, USA
Abstract :
We demonstrate wavelength modulation spectroscopy of CO2 at >30 atm using a fast-scanning MEMS laser. The technique shows promise for sensitive measurements of species with broadband absorption features, such as high-pressure gases and large molecules.
Keywords :
carbon compounds; high-speed optical techniques; light absorption; measurement by laser beam; micro-optics; micromechanical devices; optical modulation; CO2; broad absorber measurements; broadband absorption features; fast-scanning MEMS laser; high-pressure gases; large amplitude wavelength modulation spectroscopy; molecules; Absorption; Atmospheric modeling; Mathematical model; Modulation; Spectroscopy; Vertical cavity surface emitting lasers; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
