SUB-DOPPLER SPECTROSCOPY USING A MULTIPLE-REFLECTION MIRROR SYSTEM
Journal
Journal of the Optical Society of America B-Optical Physics
Journal Volume
3
Pages
935-939
Date Issued
1986
Author(s)
Abstract
A sub-Doppler spectroscopic technique using a Fresnel rhomb is combined with the White multiple-reflection cell to increase the sensitivity of ultrahigh-resolution spectroscopy. Microwave sidebands on CO2 laser radiation have been used as a frequency-tunable infrared source with high spectral purity. A gain of 4–8 in the path length with a resolution of ~100 kHz has been readily obtained. Applications of this method to observation of the hyperfine structure of NH3 and PH3, the K doubling of PH3, and the Stark spectrum of PH3 and SiH4 are given.
SDGs
Type
journal article