Abstract

We present a femtosecond off-axis digital holography for investigating the dynamic reversible surface change of a metal film induced by femtosecond laser pulses with fluences near the ablation threshold. A reflection Michelson interferometer (RMI) and a transmission Mach–Zehnder interferometer (TMZI) are integrated in the same setup for recording digital holograms. The RMI is used to measure the laser-induced surface deformation of the metal film, while the TMZI is used to analyze the refraction index change of the metal film induced by the femtosecond laser pulses. Experimental results show that both surface modification and refraction index change of chromium metal film can be observed when femtosecond laser pulses are below and above the ablation threshold. Based on the experimental results, the physical processes of the metal induced by femtosecond laser pulses are given qualitatively.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Ultrafast imaging interferometry at femtosecond-laser-excited surfaces

Vasily V. Temnov, Klaus Sokolowski-Tinten, Ping Zhou, and Dietrich von der Linde
J. Opt. Soc. Am. B 23(9) 1954-1964 (2006)

Single-shot femtosecond-pulsed phase-shifting digital holography

Takashi Kakue, Seiya Itoh, Peng Xia, Tatsuki Tahara, Yasuhiro Awatsuji, Kenzo Nishio, Shogo Ura, Toshihiro Kubota, and Osamu Matoba
Opt. Express 20(18) 20286-20291 (2012)

Synthesized femtosecond laser pulse source for two-wavelength contouring with simultaneously recorded digital holograms

Thomas Hansel, Günter Steinmeyer, Ruediger Grunwald, Claas Falldorf, Jens Bonitz, Christian Kaufmann, Volker Kebbel, and Uwe Griebner
Opt. Express 17(4) 2686-2695 (2009)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription