Using polarization to measure absorption in cavity enhanced spectroscopy

Guan, YajieBandutunga, ChathuraGray, MalcolmChow, Jong2024-04-0919 to 23 J978-155752820-9http://hdl.handle.net/1885/316610We present a method using polarization for molecular absorption readout in a cavity enhanced spectrometer. We demonstrate a double-pass cavity configuration with CO2, attaining a quantum noise-equivalent absorption sensitivity of ~3x10-13/√Hz /cm.application/pdfen-AU© 2021 OSAUsing polarization to measure absorption in cavity enhanced spectroscopy202110.1364/ES.2021.ETh1A.32022-11-20