This article is cited in 14 papers

Terahertz radiation

Excitation of surface waves by a short laser pulse in a conductor

S. A. Uryupin^ab, A. A. Frolov<sup>c

a</sup> P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b National Engineering Physics Institute "MEPhI", Moscow
^c Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow

Abstract: We have studied the possibility of exciting surface waves in a conductor, which is irradiated by a focused femtosecond laser pulse incident along the normal to the surface. The time-dependent ponderomotive force is shown to lead to the excitation of surface waves in the terahertz frequency range. It is also shown that the total energy and the pulse amplitude of the surface waves increases with increasing effective electron collision frequency.

Keywords: surface wave, femtosecond laser pulse, terahertz frequency range, frequency of collisions.

PACS: 73.20.Mf, 52.35.Mw, 42.65.Re

Received: 18.06.2013
Revised: 05.09.2013

 English version: Quantum Electronics, 2013, 43:12, 1132–1138

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