Generalized Raman gain in nonparabolic semiconductors under strong magnetic field

Kamakhya Prasad Ghatak; Ardhendhu Ghoshal; Badal De

doi:10.1117/12.43575

1 June 1991 Generalized Raman gain in nonparabolic semiconductors under strong magnetic field

Kamakhya Prasad Ghatak, Ardhendhu Ghoshal, Badal De

Proceedings Volume 1409, Nonlinear Optics II; (1991) https://doi.org/10.1117/12.43575
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

This paper investigates the quantum oscillations of the Raman gain in non-parabolic semiconductors under strong magnetic quantization, taking A₃^II B₂^V compounds as examples of nonlinear optical materials. The magneto-dispersion law was formulated in the said material within the framework of k. p formalism taking all types of anisotropies of the energy spectrum. The expression for the Raman gain for the said compound was derived, taking Cd₃P₂ as an example by including spin and broadening effects. It is found that the Raman gain increases with increasing electron concentration and oscillates with magnetic fields. The numerical values of the gain are greatest for the proposed dispersion relation of A₃^II B₂^V type of nonlinear optical materials as compared to wide gap model and the theoretical analysis is in agreement with the experimental observations as reported elsewhere. In addition, the corresponding results for three-band Kane model, two-band Kane model, and parabolic energy bands also have been formulated.

Citation Download Citation

Kamakhya Prasad Ghatak, Ardhendhu Ghoshal, and Badal De "Generalized Raman gain in nonparabolic semiconductors under strong magnetic field", Proc. SPIE 1409, Nonlinear Optics II, (1 June 1991); https://doi.org/10.1117/12.43575

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