English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Using the straightforward coupled-mode theory, the parametric amplification is analytically investigated in magnetized piezoelectric as well as non-piezoelectric semiconductors. The origin of nonlinear interaction is taken to be in the second-order optical susceptibility chi-(2) arising from the nonlinear induced current density. The threshold value of the pump electric field E0th is obtained for crystals. E0th is found to decrease with the rise in magnetic field and fall with the rise in scattering angle. Parametric gain constats are obtained for different situations of practical interest, i.e. (i) for piezoelectric coupling only gp, (ii) for deformation potential coupling only gd, (iii) for both the couplings gb. Numerical investigations reveal that the magnetic field increases the gain. Maximum gains are obtained for backward scattered mode. gd is always found to be less than gp and gb. It is also found that gp and gb both are identical up to k almost-equal-to 3 x 10(7) m-1 and for k greater-than-or-equal-to 3 x 10(7) m-1, gb exceeds gp.

Parametric Amplification in Magnetized Nondegenerate Semiconducting Plasmas