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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 6 — Mar. 15, 2012
  • pp: 1047–1049

Optics InfoBase > Optics Letters > Volume 37 > Issue 6 > Page 1047

Dynamically phase-matched terahertz generation

Daniel Dietze, Karl Unterrainer, and Juraj Darmo  »View Author Affiliations


Optics Letters, Vol. 37, Issue 6, pp. 1047-1049 (2012)
http://dx.doi.org/10.1364/OL.37.001047


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Abstract

We present the generation of intense terahertz pulses by optical rectification of 780 nm pulses in a large area gallium phosphide crystal. The velocity mismatch between optical and terahertz pulses thereby limits the bandwidth of the terahertz pulses. We show that this limitation can be overcome by a dynamic modification of the refractive index of the gallium phosphide crystal through generation of hot phonons. This is confirmed by excellent agreement between experimental results and model calculations.

© 2012 Optical Society of America

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(260.3090) Physical optics : Infrared, far
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors

ToC Category:
Nonlinear Optics

History
Original Manuscript: January 2, 2012
Manuscript Accepted: February 8, 2012
Published: March 8, 2012

Citation
Daniel Dietze, Karl Unterrainer, and Juraj Darmo, "Dynamically phase-matched terahertz generation," Opt. Lett. 37, 1047-1049 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-6-1047


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