We present a review of the investigations realized in the last decades of the phenomenon of the Bose-Einstein condensation (BEC) in the system of two-dimensional cavity polaritons in semiconductor nanostructures. The conditions at which the excitons interacting with cavity photons form new type of quasiparticles named as polaritons are described. Since polaritons can form in a microcavity a weakly interacting Bose gas, similarly to the exciton gas in semiconductors, the microcavity exciton-polariton BEC emerged in the last decades as a new direction of the exciton BEC in solids, promising for practical applications. The high interest in BEC of exciton-polaritons in semiconductor microcavities is related to the ultra-low threshold lasing which has been demonstrated, in particular, for an electrically injected polariton laser based on bulk GaN microcavity diode working at room temperature.
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Research Article|
May 01 2016
Exciton-polariton laser
S. A. Moskalenko;
S. A. Moskalenko
a)
Institute of Applied Physics,
Academy of Sciences of Moldova
, Chisinau 2028, Republic of Moldova
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I. M. Tiginyanu
I. M. Tiginyanu
Institute of Electronic Engineering and Nanotechnologies “D. Ghitu,” Academy of Sciences of Moldova, National Center of Materials Study and Testing,
Technical University of Moldova
, Chisinau 2004, Republic of Moldova
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a)
Email: exciton@phys.asm.md
Low Temp. Phys. 42, 330–339 (2016)
Article history
Received:
December 14 2015
Accepted:
April 20 2016
Citation
S. A. Moskalenko, I. M. Tiginyanu; Exciton-polariton laser. Low Temp. Phys. 1 May 2016; 42 (5): 330–339. https://doi.org/10.1063/1.4948615
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