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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 10 — Oct. 1, 2000
  • pp: 1803–1805

Compact high-aperture optical setup for excitation of dynamic gratings by ultrashort light pulses

János Hebling, Ida Z. Kozma, and Jürgen Kuhl  »View Author Affiliations


JOSA B, Vol. 17, Issue 10, pp. 1803-1805 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001803


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Abstract

A stable and compact experimental setup for excitation and investigation of large-wave-vector dynamic gratings by ultrashort light pulses is proposed. Its essential parts are an optical transmission diffraction grating and a large-aperture reflecting microscope objective. Varying the demagnification allows one to change the period of the dynamic grating that is created. The working principle and performance are demonstrated by measurement of the dephasing times of TO phonon–polaritons in GaP. The lower limits of the applicable pump pulse duration are analyzed by ray-tracing calculation.

© 2000 Optical Society of America

OCIS Codes
(300.6530) Spectroscopy : Spectroscopy, ultrafast
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors

Citation
János Hebling, Ida Z. Kozma, and Jürgen Kuhl, "Compact high-aperture optical setup for excitation of dynamic gratings by ultrashort light pulses," J. Opt. Soc. Am. B 17, 1803-1805 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-10-1803

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