title: Optical heterodyne detection of laser-induced gratings.
abstract: A novel optical arrangement for heterodyne detection of laser-induced gratings based on the use of a phase mask for both excitation and probe beams provides phase stability and control without the need for an active stabilization scheme. The arrangement greatly simplifies the laser-induced grating experiment. The performance of the technique in both transmission and reflection geometries is illustrated through measurements of bulk and surface acoustic waves generated by picosecond laser pulses.
authors: A A
authors: AA
authors: Maznev
authors: K A
authors: KA
authors: Nelson
authors: J A
authors: JA
authors: Rogers