# PRESSURE BROADENING OF THE $O_{2}$ B BAND MEASURED BY CAVITY RING-DOWN SPECTROSCOPY

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 Title: PRESSURE BROADENING OF THE $O_{2}$ B BAND MEASURED BY CAVITY RING-DOWN SPECTROSCOPY Creators: Robie, Daniel C.; Seiser, N. Issue Date: 1996 Publisher: Ohio State University Abstract: We have used cavity ring-down spectroscopy to measure pressure-broadening coefficients for several rotational lines in the atmospheric B band of $O_{2}$ at 688 nm. Collisional partners of the $O_{2}$ include $O_{2}$, $N_{2}$, and Ar. Total pressures range up to 2 atm; at that pressure, the self-broadened linewidth is $0.3 cm^{-1}$, about twice the laser bandwidth. Comparisons with previous measurements by other techniques will be discussed. Description: Author Institution: Department of Chemistry, Barnard College URI: http://hdl.handle.net/1811/13437 Other Identifiers: 1996-ME-13