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Proceedings Paper

Terahertz generation with tilted-front laser pulses: dynamical theory
Author(s): M. I. Bakunov; S. B. Bodrov; E. A. Mashkovich
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Paper Abstract

We develop a theory of terahertz emission from a femtosecond laser pulse with tilted intensity front propagating through a prism-shaped electro-optic crystal. The theory accounts for transient effects at the entrance boundary of the crystal and allows us to explore the dynamics of terahertz generation in the crystal. In particular, transverse walk-off length is introduced as an important parameter of the terahertz field formation process. Two typical experimental situations - LiNbO3 excited with Ti:sapphire laser (0.8 μm wavelength) at room and cryogenic temperatures - are considered, and new schemes, in which GaAs is excited at 1.8 and 3.5 μm, are proposed and analyzed. The parameters of the laser pulse (transverse size, tilt angle, and pulse duration) and crystal size maximizing the terahertz yield are calculated.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7917, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X, 79170J (21 February 2011); doi: 10.1117/12.877933
Show Author Affiliations
M. I. Bakunov, Univ. of Nizhny Novgorod (Russian Federation)
Institute of Applied Physics (Russian Federation)
S. B. Bodrov, Institute of Applied Physics (Russian Federation)
Univ. of Nizhny Novgorod (Russian Federation)
E. A. Mashkovich, Univ. of Nizhny Novgorod (Russian Federation)


Published in SPIE Proceedings Vol. 7917:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications X
Konstantin L. Vodopyanov, Editor(s)

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