TY - JOUR
T1 - Giant modulation of resonance Raman scattering from (Cd,Mn)Te quantum wells by secondary illumination
AU - Koudinov, A
AU - Kusrayev, Yu
AU - Wolverson, Daniel
AU - Smith, Lowenna
AU - Davies, James
AU - Karczewski, G
AU - Wojtowicz, T
PY - 2009/6/12
Y1 - 2009/6/12
N2 - Large changes in the intensity of spin-flip Raman signals from (Cd,Mn)Te quantum wells arise under weak additional illumination above the barrier band-gap energy even when the secondary beam is 2 orders of magnitude weaker than the beam used to excite resonant Raman scattering. The behavior is ascribed to changes in the lifetime of the intermediate state in the Raman-scattering process caused by the light-induced alterations in the quantum well carrier density; spin-flip Raman scattering is highly sensitive to this since it is a doubly resonant process.
AB - Large changes in the intensity of spin-flip Raman signals from (Cd,Mn)Te quantum wells arise under weak additional illumination above the barrier band-gap energy even when the secondary beam is 2 orders of magnitude weaker than the beam used to excite resonant Raman scattering. The behavior is ascribed to changes in the lifetime of the intermediate state in the Raman-scattering process caused by the light-induced alterations in the quantum well carrier density; spin-flip Raman scattering is highly sensitive to this since it is a doubly resonant process.
UR - http://www.scopus.com/inward/record.url?scp=67650034987&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1103/PhysRevB.79.241310
U2 - 10.1103/PhysRevB.79.241310
DO - 10.1103/PhysRevB.79.241310
M3 - Article
VL - 79
JO - Physical Review B : Condensed Matter and Materials Physics
JF - Physical Review B : Condensed Matter and Materials Physics
SN - 1098-0121
IS - 24
M1 - 241310
ER -