12 November 2012 Intersubband polaritonics revisited
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We revisit the intersubband polaritonics-the branch of mesoscopic physics, which has a huge potential for optoelectronic applications in the infrared and terahertz domains-and find that, contrary to the general opinion, the Coulomb interactions play a crucial role in the processes of light-matter coupling in the considered systems. Electron-electron and electron-hole interactions radically change the nature of the elementary excitations in these systems. We find that intersubband polaritons represent the result of the coupling of a photonic mode with collective excitations-and not noninteracting electron-hole pairs as it was supposed in the previous works on the subject.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Oleksandr Kyriienko, Oleksandr Kyriienko, Ivan A. Shelykh, Ivan A. Shelykh, } "Intersubband polaritonics revisited," Journal of Nanophotonics 6(1), 061804 (12 November 2012). https://doi.org/10.1117/1.JNP.6.061804 . Submission:

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