M. Hippler et J. Pfab, DETECTION AND PROBING OF NITRIC-OXIDE (NO) BY 2-COLOR LASER PHOTOIONIZATION (REMPI) SPECTROSCOPY ON THE A[-X TRANSITION, Chemical physics letters, 243(5-6), 1995, pp. 500-505
A simple two-colour (1 + 1') REMPI scheme for the detection and probin
g of nitric oxide (NO) via the A(2) Sigma(+) <-- X(2)II transition has
been introduced and characterised. Pulsed 226 and 308 nm laser light
derived from a XeCl excimer pump laser has been used for resonant exci
tation and photoionisation. The two-colour (1 + 1') REMPI scheme has b
een found to offer substantially higher sensitivity than the conventio
nal one-colour scheme. The reasons for this improvement and other adva
ntages of the two-colour technique for the state-resolved probing of N
O(X) are outlined.