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Optics Letters

Optics Letters

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  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2520–2522

Terahertz emission from a metallic surface induced by a femtosecond optic pulse

E. V. Suvorov, R. A. Akhmedzhanov, D. A. Fadeev, I. E. Ilyakov, V. A. Mironov, and B. V. Shishkin  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2520-2522 (2012)
http://dx.doi.org/10.1364/OL.37.002520


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Abstract

Results of experimental and theoretical investigations on generation of terahertz radiation at the interaction of femtosecond laser pulses with a metal surface are presented. Investigations are performed with the laser pulse intensities higher compared with that used in papers [Opt. Lett. 29, 2674 (2004); Opt. Lett. 30, 1402 (2005)]. The most effective generation is observed for p-polarized optical pulses with incidence angles in the range 5°–10° (from the surface), depending on the kind of metal. For the copper, the exponential growth of terahertz pulse energy with the increase of optical pulse energy was registered. Theoretical interpretation for some of the experimental results is proposed based on the model of free electrons in metal.

© 2012 Optical Society of America

OCIS Codes
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(260.3910) Physical optics : Metal optics

ToC Category:
Physical Optics

History
Original Manuscript: February 20, 2012
Revised Manuscript: May 3, 2012
Manuscript Accepted: May 5, 2012
Published: June 21, 2012

Citation
E. V. Suvorov, R. A. Akhmedzhanov, D. A. Fadeev, I. E. Ilyakov, V. A. Mironov, and B. V. Shishkin, "Terahertz emission from a metallic surface induced by a femtosecond optic pulse," Opt. Lett. 37, 2520-2522 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-13-2520

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