INTRACAVITY FAR INFRARED LASER STARK SPECTROSCOPY OF SUPERSONIC MOLECULAR BEAMS
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Publisher:Ohio State University
We have designed and constructed a new intracavity far infrared laser absorption experiment. The spectrometer is similar to a far infrared laser magnetic resonance spectrometer, except we use an electric field instead of a magnetic field to tune the relevant energy level differences into coincidence with the fixed frequency far infrared laser. Spectra of molecules generated in supersonic expansions and in a low pressure gas cell, both within the cavity of the laser, have been obtained. The spectrometer possesses extremely high sensitivity and high resolution ($<$1 MHz), and will be used to study rotational spectra of radicals and vibration-rotation spectra of weakly-bound molecules, generated and cooled to very low temperatures in supersonic jets. This work was supported by the Director, Office of Basic Research, U.S. Department of Energy.
Author Institution: Department of Chemistry, University of California-Berkeley; Department of Chemistry, University of California-Berkeley; Department of Chemistry, University of California-Berkeley; Department of Chemistry, University of California-Berkeley
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