Development of acoustic-optic (AO) SLM applicable to 3D holographic dispay

This research demonstrates the possibility and validity of development of acousto-optic (AO) spatial light modulator (SLM), which extends to holographic display system. This can be achieved by deflecting light beam freely through surface acoustic wave (SAW). Bragg diffraction between SAW and light wave enables to modulate light by controlling SAW [1]. Accordingly this paper shows Bragg diffraction angle and amount of diffracted light varied to applied condition of SAW, also proposes novel design and fabrication for several light beam with lens array to make focus on screen.