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| 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 |
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| 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 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | LQE2012-9 Link to ES Tech. Rep. Archives: LQE2012-9 |
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| 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 |
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| 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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| Speaker | Author-1 |
| Date Time | 2012-05-25 14:10:00 |
| Presentation Time | 25 minutes |
| Registration for | LQE |
| Paper # | LQE2012-9 |
| Volume (vol) | vol.112 |
| Number (no) | no.62 |
| Page | pp.37-42 |
| #Pages | 6 |
| Date of Issue | 2012-05-18 (LQE) |
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