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Paper Abstract and Keywords
Presentation 2012-05-25 14:10
Holographic femtosecond laser processing with dual spatial light modulators -- wavelength dispersion compensation and poralization vector control --
Satoshi Hasegawa, Yoshio Hayasaki (Utsunomiya Univ.) LQE2012-9 Link to ES Tech. Rep. Archives: LQE2012-9
Abstract (in Japanese) (See Japanese page) 
(in English) Femtosecond laser processing with a computer-generated hologram displayed on a spatial light modulator, called holographic femtosecond laser processing, has the advantages of a high throughput and a high energy-use efficiency. In the sub-100 fs range, the generation of high-quality focal intensity distributions based on computer-generated holograms is problematic due to a wavelength dispersion originated from the large spectral bandwidth of the femtosecond pulse. The wavelength dispersion results in a deformed beam profile and a spatiotemporal spread of the optical energy at a workpiece that is unsuitable for precise and efficient laser processing. In this study, we demonstrated the holographic femtosecond laser processing system with double spatial light modulators that is capable of performing the wavelength dispersion compensation.
Keyword (in Japanese) (See Japanese page) 
(in English) Computer-generated hologram / Spatial light modulator / Femtosecond laser processing / Wavelength dispersion compensation / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 62, LQE2012-9, pp. 37-42, May 2012.
Paper # LQE2012-9 
Date of Issue 2012-05-18 (LQE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Download PDF LQE2012-9 Link to ES Tech. Rep. Archives: LQE2012-9

Conference Information
Committee LQE LSJ  
Conference Date 2012-05-25 - 2012-05-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Univ. of Fukui (Bunkyo Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum optics, nonlinear optics, ultra-high speed phenomenon, etc. 
Paper Information
Registration To LQE 
Conference Code 2012-05-LQE-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Holographic femtosecond laser processing with dual spatial light modulators 
Sub Title (in English) wavelength dispersion compensation and poralization vector control 
Keyword(1) Computer-generated hologram  
Keyword(2) Spatial light modulator  
Keyword(3) Femtosecond laser processing  
Keyword(4) Wavelength dispersion compensation  
1st Author's Name Satoshi Hasegawa  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Yoshio Hayasaki  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Date Time 2012-05-25 14:10:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-LQE2012-9 
Volume (vol) IEICE-112 
Number (no) no.62 
Page pp.37-42 
#Pages IEICE-6 
Date of Issue IEICE-LQE-2012-05-18 

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