Abstract

Generation efficiency of THz radiation in the skin layer of metal increases significantly when a nanolayer of dielectric is deposited on the metal surface. Additional amplification of the generation occurs if a weakly focused femtosecond pulse affects a structure where electron collision frequency in the metal is greater than the inverse duration of the pulse.

© 2019 Optical Society of America

Terahertz sound generation at the effect of a femtosecond pulse of laser radiation on a metal

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Formation of uniform two-dimensional subwavelength structures by delayed triple femtosecond laser pulse irradiation

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Competition of quasi-cylindrical and surface waves excited at the femtosecond pulse effect on the metal

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