Global ETD Search

1	Dual-Axis Acousto-Optic/Electro-Optic Deflectors in Lithium Niobate for Full-Parallax Holographic Video Displays Adams, Mitchell Robert 30 July 2021 (has links) A major limitation of acousto-optic (AO) leaky-mode modulator based holographic displays is their inability to present full-parallax. We propose that full-parallax capabilities can be bestowed on these displays by integrating an electro-optic (EO) phased array into the architecture. We validated this concept by rendering computational models and by fabricating and testing a basic two-axis AO/EO deflector prototype in lithium niobate. This was, to our knowledge, the first instantiation of an integrated, hybrid AO/EO deflector. The prototype had a 6° deflection range along the AO-axis, and a 3° deflection range along the EO-axis. A series of models provide us with a clear path forward for optimizing this deflector. They suggest that an AO/EO modulator with an EO deflection range of 24.5° and that requires less than 7.5 V can be fabricated within the limitations of standard photolithography. Acousto-optic electro-optic leaky-mode optical phased array deflector modulator holographic video dual-axis full parallax integrated optics anisotropic lithium niobate proton exchange Engineering