| SUB-DOPPLER SPECTROSCOPY USING A MULTIPLE REFLECTION MIRROR SYSTEM (1985) | |||||||||
Abstract | |||||||||
| Author Institution: Department of Chemistry and Department of Astronomy and Astrophysics, University of Chicago. When a Fresnel rhomb is used for sub-Doppler Lamb dip spectroscopy, the returning beam is precisely collimated with the ongoing beam. Therefore we can use a multiple reflection mirror system to increase the path length and thus the sensitivity. Such a technique has been incorporated into our $CO_{2}$ laser microwave modulation sideband system. The increased sensitivity has made it possible to resolve some of the hyperfine structure of the band of $NH_{3}$ which was previously not resolved. The application of the method to other molecules, such as $SiF_{4}, $SE and $PH_{2}$, will also be presented. | |||||||||
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