Inelastic low-energy electron collisions with laser-excited rubidium atoms

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:67849

Wei, Z; Flynn, C; Stumpf, B

First experimental cross section data for Rb 5{sup 2}P(J = 3/2, M{sub j} = 3/2) {yields} 6{sup 2}D electron excitation have been obtained using the optical excitation function method in a crossed atom and electron beam arrangement. The initial state for electron impact is created as a pure spin and angular momentum state {vert_bar}L = 1, S = 1/2, M{sub L} = 1, M{sub s} = 1/2{vert_bar} by optical pumping with a circularly polarized diode-laser beam, tuned to the F{prime} = 3 {yields} F = 4 hyperfine transition of the 5{sup 2}S{sub 1/2} {yields} 5{sup 2}P{sub 3/2} resonance line (780 nm) of {sup 85}Rb. The role of simultaneous 5{sup 2}S {yields} 6{sup 2}D direct electron excitation from the ground state, measured previously, {sup 2}F {yields} 6{sup 2}D cascading, anisotropy of observed 6{sup 2}D {yields} 5{sup 2}P fluorescence, and normalization to first Born theory at high energies are carefully discussed.

• OSTI ID: 67849
• Report Number(s): CONF-9310400--; CNN: Grant RII-8902065
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 13 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COLLIDING BEAMS
ELECTRON-ATOM COLLISIONS
EXCITED STATES
INELASTIC SCATTERING
RUBIDIUM