Title of article :
Photoinduced amplification of hypersound in superlattices
Author/Authors :
Nunes، نويسنده , , O.A.C. and Fonseca، نويسنده , , A.L.A. and Agrello، نويسنده , , D.A.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Abstract :
The high-frequency acoustic-phonon scattering by electrons in superlattices in the presence of an intense radiation field is discussed. It is shown that in the intense field regime of the electromagnetic wave the hypersound attenuation coefficient may revert its sign and hypersound amplification can be obtained. An application is made for GaAs based superlattices.
Keywords :
A. Semiconductors , D. phonons , D. Electron–phonon interaction
Journal title :
Solid State Communications
Journal title :
Solid State Communications
