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Giant modulation of resonance Raman scattering from (Cd,Mn)Te quantum wells by secondary illumination


Reference:

Koudinov, A., Kusrayev, Y., Wolverson, D., Smith, L., Davies, J., Karczewski, G. and Wojtowicz, T., 2009. Giant modulation of resonance Raman scattering from (Cd,Mn)Te quantum wells by secondary illumination. Physical Review B, 79 (24), 241310.

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Official URL:

http://dx.doi.org/10.1103/PhysRevB.79.241310

Abstract

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.

Details

Item Type Articles
CreatorsKoudinov, A., Kusrayev, Y., Wolverson, D., Smith, L., Davies, J., Karczewski, G. and Wojtowicz, T.
DOI10.1103/PhysRevB.79.241310
DepartmentsFaculty of Science > Physics
RefereedYes
StatusPublished
ID Code21741

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