Quantum yields for nitrate radical photolysis between 570 and 635 nm

Quantum yields for the production of O( 3 P) from the photolysis of NO 3 have been measured over the wavelength range 570-635 nm, using a pulsed laser photolysis-resonance fluorescence technique. Absolute O( 3 P) quantum yields were determined at selected wavelengths using O 3 photolysis to normalize for laser energy and detection sensitivity; the measured quantum yields were 1.06±0.26 at 582 nm, 0.72± 0.18 at 590 nm, and 0.52±0.13 at 603 nm