section of NO 2 from approximately 430 to 500 or 580 nm, depending on temperature, with a
spectral resolution of approximately 0.06 nm. An ultrafast-laser-absorption-spectroscopy
(ULAS) diagnostic was developed and used to provide broadband (up to approximately 900
cm− 1 per laser shot) cross-section measurements with sub-nanosecond time resolution.
Cross-section measurements were acquired from 430 to 580 nm in a heated gas cell at …