Two-dimensional cavity polaritons under the influence of the perpendicular strong magnetic and electric fields. The gyrotropy effects

Abstract

The properties of the two-dimensional cavity polaritons subjected to the action of a strong perpendicular magnetic and electric fields, giving rise to the Landau quantization (LQ) of the 2D electrons and holes accompanied by the Rashba spin-orbit coupling, by the Zeeman splitting and by the nonparabolicity of the heavy-hole dispersion law are investigated. We use the method proposed by Rashba [1] and the obtained results are based on the exact solutions for the eigenfunctions and for the eigenvalues of the Pauli-type Hamilonians with third order chirality terms and nonparabolic dispersion law for heavy-holes and with the first order chirality terms for electrons. The selection rules of the band-to-band optical quantum transitions as well as of the quantum transitions from the ground state of the crystal to the magnetoexciton states depend essentially on the numbers $n_e$ and $n_h$ of the LQ levels of the (e-h) pair forming the magnetoexciton. It is shown that the Rabi frequency ${\Omega }_R$ of the polariton branches and the magnetoexciton oscillator strength $f_{osc}$ increase with the magnetic field strength $B$ as ${\Omega }_R\sim \sqrt{B}$, and $f_{osc}\sim B$. The optical gyrotropy effects may be revealed changing the sign of the photon circular polarization at a given sign of the wave vector longitudinal projection $k_z$ or eqivalently changing the sign of $k_z$ at the same selected circular polarization.

7 pages, 1 figure. To be published Solid State Comm

References in corpus (7)

• Quantum Degenerate Exciton-Polaritons in Thermal Equilibrium
• Collective coherence in planar semiconductor microcavities
• Magnetic field tuning of exciton polaritons in a semiconductor microcavity
• Magnetic field effect on polarization and dispersion of exciton-polaritons in planar microcavities
• Intersubband polaritons with spin-orbit interaction
• Effects of Rashba spin-orbit coupling, Zeeman splitting and gyrotropy in two-dimensional cavity polaritons under the influence of the Landau quantization
• Landau quantization, Rashba spin-orbit coupling and Zeeman splitting of two-dimensional heavy holes

Cited by in corpus (1)

• Dispersion laws of the two-dimensional cavity magnetoexciton-polaritons