GAS-PHASE INFRARED SPECTROSCOPY OF $N_{2} O$ IN A CQLLISIONALLY COOLED CELL AT 5 AND 10
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Date
1994
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Publisher
Ohio State University
Abstract
With the use of a collisionally cooled cell we have observed the R(0), R(l) and R(2) lines of the $00^{\circ} 0-00^{\circ} 1$ vibrational transition of $N^{2}O$ at 5 and 10 K. The $N_{2}O$ gas was cooled via collisions with helium atoms in a cryogenic cell and a tunable diode laser near $2224 cm^{-1}$ was used to observe the transitions. Doppler widths were measured for each of these lines. To our knowledge this represents the first reported use of the collisional cooling technique in the infrared at liquid helium temperatures.
Description
Author Institution: Department of Physics, Allegheny College; Department of Chemistry and Columbia Radiation, Columbia University