title: Three-dimensional velocity map imaging of KBr surface photochemistry.
abstract: We have combined the velocity map imaging technique with time-of-flight measurements to study the surface photochemistry of KBr single crystals. This approach yields 3-dimensional velocity distributions of Br atoms resulting from 193 nm photodesorption. The velocity distributions indicate that at least two non-thermal mechanisms contribute to the photodesorption dynamics. Our experimental geometry also allows us to measure the Br(2P3/2):Br(2P1/2) branching ratio, which is found to be 24:1.
authors: Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA.
authors: Sven P K
authors: SP
authors: Koehler
authors: Yuanyuan
authors: Y
authors: Ji
authors: Daniel J
authors: DJ
authors: Auerbach
authors: Alec M
authors: AM
authors: Wodtke