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Proceedings Paper

Movement of a bubble inside silica glass and calcium fluoride by irradiation of femtosecond laser pulses
Author(s): Wataru Watanabe; Kazuhiro Yamada; Daisuke Kuroda; Taishi Shinagawa; Kazuyoshi Itoh; Junji Nishii
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Paper Abstract

Many researchers have investigated the interaction of femtosecond laser pulses with a wide variety of materials. The structural modifications both on the surface and inside the bulk of transparent materials have been demonstrated. When femtosecond laser pulses are focused into glasses with a high numerical aperture objective, voids are formed. We report first observation that a bubble, which is called void moves under irradiation of femtosecond laser pulses inside silica glass and calcium fluoride. In situ observation reveals that the void moves towards incident direction of laser pulses as long as 5 micron by successive laser pulses without any mechanical translations.

Paper Details

Date Published: 8 May 2001
PDF: 4 pages
Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); doi: 10.1117/12.427080
Show Author Affiliations
Wataru Watanabe, Osaka Univ. (Japan)
Kazuhiro Yamada, Osaka Univ. (Japan)
Daisuke Kuroda, Osaka Univ. (Japan)
Taishi Shinagawa, Osaka Univ. (Japan)
Kazuyoshi Itoh, Osaka Univ. (Japan)
Junji Nishii, Osaka National Research Institute (Japan)


Published in SPIE Proceedings Vol. 4416:
Optical Engineering for Sensing and Nanotechnology (ICOSN 2001)
Koichi Iwata, Editor(s)

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