Research output: Contribution to journal › Conference article › peer-review
Nonlinear dynamics of the exciton reflection spectrum. / Belyaev, L. Yu; Kapitonov, Yu V.; Stroganov, B. V.; Efimov, Yu P.; Dolgikh, Yu K.; Eliseev, S. A.; Petrov, V. V.; Ovsyankin, V. V.
In: Journal of Physics: Conference Series, Vol. 769, No. 1, 012041, 23.11.2016.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Nonlinear dynamics of the exciton reflection spectrum
AU - Belyaev, L. Yu
AU - Kapitonov, Yu V.
AU - Stroganov, B. V.
AU - Efimov, Yu P.
AU - Dolgikh, Yu K.
AU - Eliseev, S. A.
AU - Petrov, V. V.
AU - Ovsyankin, V. V.
N1 - Conference code: 18
PY - 2016/11/23
Y1 - 2016/11/23
N2 - Nonlinear dynamics of refelction from InGaAs/GaAs quantum well was studied by pump-probe spectroscopy. Brewster geometry allowed to extract the time dependency of radiative width and nonradiative broadening of the excitonic resonance from reflection spectra. Pump pulse action leads to the increase of the nonradiative broadening and decrase of the radiative width. Fast decay component of the additional nonradiative broadening is attributed to the scattering on the pump-induced excitons. Slow component was explained by a scattering either on pump-induced charged carriers, or subsequently formed trions. This assumtion is additionaly proved by the decrase of the radiative width with same decay times caused by the redistribution of oscillator strength between exciton and trion states.
AB - Nonlinear dynamics of refelction from InGaAs/GaAs quantum well was studied by pump-probe spectroscopy. Brewster geometry allowed to extract the time dependency of radiative width and nonradiative broadening of the excitonic resonance from reflection spectra. Pump pulse action leads to the increase of the nonradiative broadening and decrase of the radiative width. Fast decay component of the additional nonradiative broadening is attributed to the scattering on the pump-induced excitons. Slow component was explained by a scattering either on pump-induced charged carriers, or subsequently formed trions. This assumtion is additionaly proved by the decrase of the radiative width with same decay times caused by the redistribution of oscillator strength between exciton and trion states.
UR - http://www.scopus.com/inward/record.url?scp=85007085609&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/769/1/012041
DO - 10.1088/1742-6596/769/1/012041
M3 - Conference article
AN - SCOPUS:85007085609
VL - 769
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012041
T2 - 18th International Conference PhysicA.SPb
Y2 - 26 October 2015 through 29 October 2015
ER -
ID: 28209065