Parametric Phonon-Helicon Interaction in Centrosymmetric Crystals with Strain-Dependent Dielectric Constant

• Authors: O. Artemenko , B. Sevruk
• Languages of publication: EN

Abstracts

EN

The process of interaction between circularly polarized coherent transverse phonons and slow electrokinetic waves in the centrosymmetric crystal placed in a longitudinal magnetic field and possessing strong strain dependence of the dielectric constant caused by the electrostriction is considered. The cut-off system of equations for the process of nonlinear four-wave interaction in crystal with a quadratic electrostriction corresponding to direct energy conversion from helicon to acoustic wave is derived. The solution is sought for numerically in the vicinity of a synchronism point determined by the intersection of helicon and phonon dispersion curves at different values of semiconductor plasma parameters. The results show the possibility of effective phonon parametric amplification in semiconductor crystal with the electroinduced elastic anisotropy.

Keywords

EN

63.20.Kr

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 3
• Pages: 531-539

Dates

published

1996-09

received

1995-05-15

(unknown)

1996-02-27

Contributors

author

O. Artemenko

• Institute of Applied Physics, Academy of Sciences of Belarus, F. Skariny Str. 16, Minsk, 220072, Belarus

author

B. Sevruk

• Institute of Physics, Academy of Sciences of Belarus, F. Skariny Str. 70, Minsk, 220072, Belarus

Identifiers

DOI

10.12693/APhysPolA.90.531