Research Papers

Dispersion laws of the two-dimensional cavity magnetoexciton-polaritons

[+] Author Affiliations
Sveatoslav A. Moskalenko, Igor V. Podlesny, Evgheni V. Dumanov

Institute of Applied Physics of the Academy of Sciences of Moldova, Academic Street 5, Chisinau 2028, Republic of Moldova

Michael A. Liberman

KTH and Stockholm University, Nordic Institute for Theoretical Physics, Roslagstullsbacken 23, 106 91 Stockholm, Sweden

Boris V. Novikov

St. Petersburg State University, Institute of Physics, Department of Solid State Physics, 1, Ulyanovskaya Street, Petrodvorets, 198504 St. Petersburg, Russia

J. Nanophoton. 10(3), 036006 (Aug 01, 2016). doi:10.1117/1.JNP.10.036006
History: Received February 24, 2016; Accepted May 31, 2016
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Abstract.  The energy spectrum of the two-dimensional cavity magnetoexciton-polaritons has been investigated previously, using exact solutions for the Landau quantization (LQ) of conduction electrons and heavy holes (hhs) provided by the Rashba method. Two lowest LQ levels for electrons and three lowest Landau levels for hhs lead to the construction of the six lowest magnetoexciton sates. They consist of two dipole-active, two quadrupole-active, and the two forbidden quantum transitions from the ground state of the crystal to the magnetoexciton states. The interaction of the four optical-active magnetoexciton states with the cavity-mode photons with a given circular polarization and with well-defined incidence direction leads to the creation of five magnetoexciton-polariton branches. The fifth-order dispersion equation is examined by using numerical calculations and the second-order dispersion equation is solved analytically, taking into account only one dipole-active magnetoexciton state in the point of the in-plane wave vector k=0. The effective polariton mass on the lower polariton branch, the Rabi frequency, and the corresponding Hopfield coefficients are determined in dependence on the magnetic-field strength, the Rashba spin–orbit coupling parameters, and the electron and hole g-factors.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Sveatoslav A. Moskalenko ; Igor V. Podlesny ; Evgheni V. Dumanov ; Michael A. Liberman and Boris V. Novikov
"Dispersion laws of the two-dimensional cavity magnetoexciton-polaritons", J. Nanophoton. 10(3), 036006 (Aug 01, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.036006


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