title: Two-component, self-aligning laser vector velocimeter.
abstract: A newly developed laser Doppler velocimeter is described. The basic optical component of the instrument is a two-dimensional ultrasonic Bragg cell. It is shown that use of this Bragg cell simplifies the optics usually required for the more conventional velocimeters, allows measurement of two-vector components of velocity, requires no adjustment of alignment mirrors, and enables both velocity component signals to be detected with a single detector. Some results from experiments using this velocimeter in an atmospheric application are described.
authors.forename: W M
authors.initials: WM
authors.lastname: Farmer
authors.forename: J O
authors.initials: JO
authors.lastname: Hornkohl