Abstract-Nonlinear transmission and reflection of a strong terahertz pulse by a metal film

S. G. Bezhanov and S. A. Uryupin

http://www.etoponline.org/ol/abstract.cfm?uri=ol-43-13-3069

Nonlinear interaction of the powerful terahertz radiation pulse with metal nanofilm is investigated. Quantitative analysis of the nonlinear interaction is illustrated by an example of an aluminum film of a thickness of several tens of nanometers. Rapid heating of the conduction electrons and the lattice causes significant rise of the effective electron collision frequency. This implies a noticeable change in reflectivity and an increase of transmissivity by an order of magnitude.

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