Abstract

The temporal evolution of refractive-index change produced by a tightly focused femtosecond (fs) laser pulse inside a soda-lime glass plate was investigated by use of a transient lens method with subpicosecond time resolution. An oscillating behavior of the light intensity in the central region of the probe beam was observed 0–1500 ps after irradiation of the plate. The oscillation was interpreted in terms of a rapid temperature increase and the ensuing propagation of the pressure wave. This study is to our knowledge the first real-time observation of refractive-index change inside a glass induced by a fs laser pulse.

© 2004 Optical Society of America

Observation of pressure wave generated by focusing a femtosecond laser pulse inside a glass

M. Sakakura, M. Terazima, Y. Shimotsuma, K. Miura, and K. Hirao
Opt. Express 15(9) 5674-5686 (2007)

In situ observation of photoinduced refractive-index changes in filaments formed in glasses by femtosecond laser pulses

Kazuhiro Yamada, Wataru Watanabe, Tadamasa Toma, Kazuyoshi Itoh, and Junji Nishii
Opt. Lett. 26(1) 19-21 (2001)

Optical properties of structurally modified glasses doped with gold ions

Jianrong Qiu, Xiongwei Jiang, Congshan Zhu, Hideyuki Inouye, Jinhai Si, and Kazuyuki Hirao
Opt. Lett. 29(4) 370-372 (2004)

Multilevel phase-type diffractive lenses in silica glass induced by filamentation of femtosecond laser pulses

Kazuhiro Yamada, Wataru Watanabe, Yudong Li, Kazuyoshi Itoh, and Junji Nishii
Opt. Lett. 29(16) 1846-1848 (2004)

Condensation of Si-rich region inside soda-lime glass by parallel femtosecond laser irradiation

Masaaki Sakakura, Kouhei Yoshimura, Torataro Kurita, Masahiro Shimizu, Yasuhiko Shimotsuma, Naoaki Fukuda, Kazuyuki Hirao, and Kiyotaka Miura
Opt. Express 22(13) 16493-16503 (2014)