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Title of Article

SOME FEATURES OF BROADBAND TERAHERTZ PULSE FOCUSING


Issue
5
Date
2011

Article type
scientific article
UDC
535.31
Pages
124-127
Keywords
terahertz radiation, pulse focusing, Fourier optics


Authors
Zhukov Sergey Nikolaevich
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo

Zhukova Irina Semenovna
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo

Mikhaylychev Nikolay Evgenevich
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo


Abstract
Some features of broadband terahertz pulse focusing by a plano-convex cylindrical lens are numerically simulated and studied on the basis of the Fourier transform. We consider both the model pulse with a Gaussian space-time profile and a real terahertz pulse produced by the optical rectification of a p-polarized ultra-short laser pulse propagating through the electrooptic crystal. It is shown that different pulse spectral components are focused at different points on the lens axis.

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