Посилання:Anisotropy and non-linearity of absorption of an intensive IR light by free electrons in germanium / V.M. Vasetskii, V.A. Ignatenko, V.N. Poroshin // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2005. — Т. 8, № 3. — С. 12-15. — Бібліогр.: 11 назв. — англ.
Підтримка:The authors are greatly indebted to Prof. O.G. Sarbey
for fruitful discussion of the results.
The anisotropy and non-linearity of absorption of the intensive CO₂ laser radiation by free electrons in germanium has been found. The effect is caused by redistribution of electrons among equivalent valleys occurring due to non-equal heating electrons in the valleys which have different orientation in regard to the electric field of the light wave.