- Tytuł:
- Terahertz Emission from Narrow Gap Semiconductors Photoexcited by Femtosecond Laser Pulses
- Autorzy:
-
Adomavičius, R.
Urbanowicz, A.
Molis, G.
Krotkus, A. - Powiązania:
- https://bibliotekanauki.pl/articles/2041649.pdf
- Data publikacji:
- 2005-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
42.65.Re
07.57.Hm
78.47.+p
72.30.+q - Opis:
- Large increase in the emitted terahertz power was observed for p-InAs samples with the p-doping levels of approximately 10$\text{}^{16}$-10$\text{}^{17}$ cm$\text{}^{-3}$. This increase was explained by a large surface depletion layer and an electric-field-induced optical rectification effect in the layer. Terahertz fields radiated by the samples of all three investigated Cd$\text{}_{x}$Hg$\text{}_{1-x}$Te layers was of the same order of magnitude. No azimuthal angle dependence of the radiated signal was detected, which evidences that linear current surge effect is dominating over nonlinear optical rectification. Azimuthal angle and magnetic fields emission witness that it is caused by linear photo-Dember type processes.
- Źródło:
-
Acta Physica Polonica A; 2005, 107, 1; 132-136
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł