Research output: Contribution to journal › Article
Significant photoinduced Kerr rotation achieved in semiconductor microcavities. / Cherbunin, R.V.; Vladimirova, M.; Kavokin, K.V.; Mikhailov, A.V.; Kopteva, N.E.; Lagoudakis, P.G.; Kavokin, A.V.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 91, No. 20, 2015, p. 205308.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Significant photoinduced Kerr rotation achieved in semiconductor microcavities
AU - Cherbunin, R.V.
AU - Vladimirova, M.
AU - Kavokin, K.V.
AU - Mikhailov, A.V.
AU - Kopteva, N.E.
AU - Lagoudakis, P.G.
AU - Kavokin, A.V.
PY - 2015
Y1 - 2015
N2 - Giant Kerr rotation and ellipticity are observed and investigated in an asymmetric planar microcavity with a quantum well in the active region. Rotation angle of the polarization plane as well as ellipticity were determined from time- and frequency-resolved measurements of the Stokes vector components of reflected light. It was found that in a small range of the cavity mode detunings the polarized pump pulse creates a large splitting of the lower polariton branch while leaving its linewidth almost the same. This fact gives a possibility to observe at such detunings the Kerr rotation angle and ellipticity, close to their extremes. A theoretical analysis shows that the decisive role in reaching extreme polarization rotation angles is played by the structure asymmetry. Comprehensive analysis of the polarization state of the light in this regime shows that both renormalization of the exciton energy and the saturation of the excitonic resonance contribute to the observed optical nonlinearities.
AB - Giant Kerr rotation and ellipticity are observed and investigated in an asymmetric planar microcavity with a quantum well in the active region. Rotation angle of the polarization plane as well as ellipticity were determined from time- and frequency-resolved measurements of the Stokes vector components of reflected light. It was found that in a small range of the cavity mode detunings the polarized pump pulse creates a large splitting of the lower polariton branch while leaving its linewidth almost the same. This fact gives a possibility to observe at such detunings the Kerr rotation angle and ellipticity, close to their extremes. A theoretical analysis shows that the decisive role in reaching extreme polarization rotation angles is played by the structure asymmetry. Comprehensive analysis of the polarization state of the light in this regime shows that both renormalization of the exciton energy and the saturation of the excitonic resonance contribute to the observed optical nonlinearities.
U2 - 10.1103/PhysRevB.91.205308
DO - 10.1103/PhysRevB.91.205308
M3 - Article
VL - 91
SP - 205308
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 20
ER -
ID: 3935411