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Dispersion laws of the two-dimensional cavity magnetoexciton-polaritons
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.ORCID iD: 0000-0003-4308-7225
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2016 (English)In: Journal of Nanophotonics, ISSN 1934-2608, Vol. 10, no 3, 036006Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2016. Vol. 10, no 3, 036006
Keyword [en]
Hopfield coefficients, magnetoexciton, polariton, Rashba spin-orbit coupling, Dispersion (waves), Ground state, Phonons, Photons, Lower polariton branches, Magnetic field strengths, Polaritons, Second-order dispersion, Two-dimensional cavities, Quantum theory
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-197189DOI: 10.1117/1.JNP.10.036006ScopusID: 2-s2.0-84982826634OAI: diva2:1055682

QC 20161213

Available from: 2016-12-13 Created: 2016-11-30 Last updated: 2016-12-13Bibliographically approved

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Liberman, Michael A.
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Nordic Institute for Theoretical Physics NORDITA
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