title: Saturated absorption in SF(6) with double-velocity selection.
abstract: Doppler-free saturated absorption of a weak CO(2) laser probe on SF(6), which is caused by two noncollinear pump beams, is reported. A small-linewidth angular dependence was observed and can be predicted in agreement with a fifth-order perturbation calculation for a two-level atom.
authors.forename: P C
authors.initials: PC
authors.lastname: de Oliveira
authors.forename: D
authors.initials: D
authors.lastname: Bloch
authors.forename: J R
authors.initials: JR
authors.lastname: Leite