Presentation 2009-05-22
Adaptive optimization of hologram that capable of compensating for spatial properties of optical system
Satoshi HASEGAWA, Yoshio HAYASAKI,
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Abstract(in English) Although a computer-generated hologram that is sufficiently optimized has high quality in computer reconstruction, the quality decreases in a real optical reconstruction system. To overcome this issue, we implemented an adaptive scheme that compensates for the spatial properties of the real optical reconstruction system with a liquid-crystal spatial light modulator and feedback control based on estimation of the reconstructed diffraction pattern. We demonstrated holographic femtosecond laser processing with the adaptive optimization, and analyzed the optimization performance. Furthermore, to examine the origin of residual error after the adaptive optimization was performed sufficiently, we also investigated the temporal characteristics of the spatial light modulator.
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Keyword(in English) Computer-generated hologram / Spatial light modulator / Adaptive optics / Femtosecond laser processing
Paper # LQE2009-13
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Committee LQE
Conference Date 2009/5/15(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Adaptive optimization of hologram that capable of compensating for spatial properties of optical system
Sub Title (in English)
Keyword(1) Computer-generated hologram
Keyword(2) Spatial light modulator
Keyword(3) Adaptive optics
Keyword(4) Femtosecond laser processing
1st Author's Name Satoshi HASEGAWA
1st Author's Affiliation Center for Optical Research and Education (CORE), Utsunomiya University()
2nd Author's Name Yoshio HAYASAKI
2nd Author's Affiliation Center for Optical Research and Education (CORE), Utsunomiya University
Date 2009-05-22
Paper # LQE2009-13
Volume (vol) vol.109
Number (no) 49
Page pp.pp.-
#Pages 6
Date of Issue