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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 23 — Dec. 1, 2012
  • pp: 4916–4918

Holographic study of ultrafast optical excitation in GaN film induced by nonlinear propagation of light

N. Šiaulys, V. Kudriašov, T. Stanislauskas, T. Malinauskas, A. Urniežius, and A. Melninkaitis  »View Author Affiliations

Optics Letters, Vol. 37, Issue 23, pp. 4916-4918 (2012)

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The dynamics of pulse transformation and free-carrier generation associated with the nonlinear propagation of 1030 nm and 300 fs light pulses in Gallium nitride film has been studied by use of pulsed digital holography with 25 fs temporal resolution. Domination of the Kerr effect at the leading part and electron plasma at the trailing part of the pulse has been identified from the reconstructed spatiotemporal phase-contrast images. Experimental results have been supported by the simplified numerical model capable to reproduce the main features of a dynamic process.

© 2012 Optical Society of America

OCIS Codes
(180.3170) Microscopy : Interference microscopy
(190.3270) Nonlinear optics : Kerr effect
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(090.1995) Holography : Digital holography

ToC Category:

Original Manuscript: August 9, 2012
Manuscript Accepted: October 4, 2012
Published: November 28, 2012

N. Šiaulys, V. Kudriašov, T. Stanislauskas, T. Malinauskas, A. Urniežius, and A. Melninkaitis, "Holographic study of ultrafast optical excitation in GaN film induced by nonlinear propagation of light," Opt. Lett. 37, 4916-4918 (2012)

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