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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 5 — May. 1, 2011
  • pp: 1308–1316

Finite-difference time-domain analysis of time-resolved terahertz spectroscopy experiments

Casper Larsen, David G. Cooke, and Peter Uhd Jepsen  »View Author Affiliations


JOSA B, Vol. 28, Issue 5, pp. 1308-1316 (2011)
http://dx.doi.org/10.1364/JOSAB.28.001308


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Abstract

In this paper we report on the numerical analysis of a time-resolved terahertz (THz) spectroscopy experiment using a modified finite-difference time-domain method. Using this method, we show that ultrafast carrier dynamics can be extracted with a time resolution smaller than the duration of the THz probe pulse and can be determined solely by the pump pulse duration. Our method is found to reproduce complicated two-dimensional transient conductivity maps exceedingly well, demonstrating the power of the time-domain numerical method for extracting ultrafast and dynamic transport parameters from time-resolved THz spectroscopy experiments. The numerical implementation is available online.

© 2011 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6530) Spectroscopy : Spectroscopy, ultrafast
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: February 7, 2011
Manuscript Accepted: March 8, 2011
Published: April 28, 2011

Citation
Casper Larsen, David G. Cooke, and Peter Uhd Jepsen, "Finite-difference time-domain analysis of time-resolved terahertz spectroscopy experiments," J. Opt. Soc. Am. B 28, 1308-1316 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-5-1308

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