RESONANCE-ENHANCED MULTIPHOTON IONIZATION MEASUREMENT OF CL(2P3/2 AND 2P1/2) PRODUCED IN THE PHOTOLYSIS OF OCLO FROM 355 TO 370 NM

Chlorine atoms are detected in their ground and spin-orbit excited states as photodissociation products of room-temperature OClO excited at wavelengths 356-363 nm. A tunable dye laser is used to excite OClO in the wavelength range 355-370 nm, and a second tunable dye laser is used to probe for Cl (and Cl*) atoms via their (2 + 1) REMPI spectrum near 235 nm. The quantum yield for Cl formation near 362 nm is 0.15 +/- 0.10, with about 5 times more ground-state than spin-orbit excited Cl produced.