A reflective optical modulator based on acousto-optic modulation of light by a mirror corrugated with surface acoustic waves is presented. Modulation of optical amplitude, frequency, and phase is demonstrated at visible (633- and 488-nm) and deep UV (244-nm) wavelengths. The reflective modulator has eight channels and achieves a maximum first-order diffraction efficiency of 6.0%.
© 2004 Optical Society of America
(050.1950) Diffraction and gratings : Diffraction gratings
(230.0230) Optical devices : Optical devices
(230.1040) Optical devices : Acousto-optical devices
(230.4110) Optical devices : Modulators
(230.6120) Optical devices : Spatial light modulators
Stanley S. Hong, Michael S. Mermelstein, and Dennis M. Freeman, "Reflective Acousto-Optic Modulation with Surface Acoustic Waves," Appl. Opt. 43, 2920-2924 (2004)