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Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper QTuB1

Coherence and quantum beats in time-resolved resonant light scattering from excitons

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Abstract

Resonant light scattering provides a wealth of information on the properties of excitonic states and their interaction with phonons in a solid. However, the unambiguous distinction between Raman scattering and hot luminescence remained an open question. Since Raman scattering, in the strict sense, is defined as a process during which the phase coherence of the intermediate states is retained, whereas in hot luminescence coherence is lost, time-resolved studies should allow one to discriminate between diese processes and to follow the development of the initially excited coherent exciton state to the final incoherent ensemble by energy and phase relaxation.1

© 1992 Optical Society of America

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