| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9837440 | Physica B: Condensed Matter | 2005 | 6 Pages |
Abstract
The mechanism of terahertz emission from the surfaces of n- and p-type Ge crystals illuminated by femtosecond Ti:sapphire laser pulses was investigated. It has been concluded that this emission is caused by the cold plasma oscillation activated by a transient polarization arising due to different diffusion rates for photoexcited electrons and holes. The dynamics of those carriers was also investigated with subpicosecond temporal resolution by using an optical pump-terahertz probe technique.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A. Urbanowicz, R. AdomaviÄius, A. Krotkus,