Open AccessК теории плазмон-экситонов: оценка константы взаимодействия и оптический спектр
Author(s) -
Н.С. Аверкиев,
А.В. Коротченков,
В.А. Кособукин
Publication year - 2019
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2019.08.47996.9107
Subject(s) - exciton , plasmon , resonance (particle physics) , dielectric , condensed matter physics , semiconductor , coupling constant , surface plasmon resonance , spectral line , coupling (piping) , materials science , molecular physics , physics , nanoparticle , optoelectronics , atomic physics , nanotechnology , quantum mechanics , metallurgy
The structure of the optical spectra related to the resonant interaction of quasi-two-dimensional excitons and localized plasmons is investigated theoretically. The constant of plasmon–exciton coupling is estimated in a model considering a semiconductor quantum well close to a layer of metal nanoparticles in an adjacent dielectric medium. Numerical calculations carried out for GaAs/Ag and ZnO/Al nanosystems indicate that near the plasmon–exciton resonance the spectrum features a double-peak structure which exhibits the plasmon-excitonic anticrossing behavior upon detuning from exact resonance.