| Presentation | 2004/1/23 Observation of a nail surface processed by femtosecond pulse laser Hayato TAKAGI, Akihito TAKITA, Hirotsugu YAMAMOTO, Yoshio HAYASAKI, Nobuo NISHIDA, Hiroaki MISAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigate a processing to a human fingernail surface by use of a focused femtosecond laser pulse. The processed structure of the fingernail surface drastically changes with focus position and irradiation energy of a single pulse. We observed a doughnut structure, a simple pit, a small pit with its surrounding uplift, a jagged surface with irregular roughness, a swell containing a void inside material according to the focus position. We found a sudden change of the processed size according to the irradiation pulse energy. From a theoretical model based on the Fresnel diffraction of the focused beam, we demonstrate that the sudden change is caused by a diffraction pattern of circular aperture. We also clarify those processing features by comparing with the processing to a glass. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Femtosecond laser pulse processing / Biological tissues / Laser ablation |
| Paper # | PN2003-88,OFT2003-110,OPE2003-267,LQE2003-204 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2004/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Observation of a nail surface processed by femtosecond pulse laser |
| Sub Title (in English) | |
| Keyword(1) | Femtosecond laser pulse processing |
| Keyword(2) | Biological tissues |
| Keyword(3) | Laser ablation |
| 1st Author's Name | Hayato TAKAGI |
| 1st Author's Affiliation | Department of Optical Science and Technology, The University of Tokushima() |
| 2nd Author's Name | Akihito TAKITA |
| 2nd Author's Affiliation | Department of Optical Science and Technology, The University of Tokushima |
| 3rd Author's Name | Hirotsugu YAMAMOTO |
| 3rd Author's Affiliation | Department of Optical Science and Technology, The University of Tokushima |
| 4th Author's Name | Yoshio HAYASAKI |
| 4th Author's Affiliation | Department of Optical Science and Technology, The University of Tokushima |
| 5th Author's Name | Nobuo NISHIDA |
| 5th Author's Affiliation | Department of Optical Science and Technology, The University of Tokushima |
| 6th Author's Name | Hiroaki MISAWA |
| 6th Author's Affiliation | Research Institute for Electronic Science, Hokkaido University |
| Date | 2004/1/23 |
| Paper # | PN2003-88,OFT2003-110,OPE2003-267,LQE2003-204 |
| Volume (vol) | vol.103 |
| Number (no) | 615 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |