<P>Acoustic-optic (AO) based holographic display unit have been developed through a focused and wide bandwidth surface acoustic wave (SAW). The developed AO device constitutes a laser source, ZnS waveguide layer, Prism, focused and chirp interdi...
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https://www.riss.kr/link?id=A107524354
2017
-
SCI,SCIE,SCOPUS
학술저널
5366-5374(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Acoustic-optic (AO) based holographic display unit have been developed through a focused and wide bandwidth surface acoustic wave (SAW). The developed AO device constitutes a laser source, ZnS waveguide layer, Prism, focused and chirp interdi...
<P>Acoustic-optic (AO) based holographic display unit have been developed through a focused and wide bandwidth surface acoustic wave (SAW). The developed AO device constitutes a laser source, ZnS waveguide layer, Prism, focused and chirp interdigital transducers (IDTs) on 128A degrees YX-LiNbO3 piezoelectric substrate, and a viewing plane. The AO interacted beam's diffraction angle and intensity is modulated by SAW driving power variations of the focused and chirp IDTs. A maximum diffraction efficiency similar to 73 % is obtained at a center frequency of 400 MHz for focused IDTs. By modulating the power of focused IDT, we can shape an incident light into patterns composed of a series of point sources. Our findings provide a facile approach to build hologram display having wide angle light diffraction and high efficiency performance with focused SAW grating.</P>