Dynamic stark effect of exciton and continuum states in CdS

N. Peyghambarian, S. W. Koch, M. Lindberg, B. Fluegel, M. Joffre

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

The first observation of the optical Stark effect of electron-hole continuum states in addition to the bound-exciton states is reported under femtosecond excitation conditions chosen to minimize the generation of real carriers. The experimental results agree well with calculations using the generalized semiconductor Bloch equations. The theory shows that the commonly used adiabatic approximation is correct only for pulses which are longer than the coherence decay time. For shorter pulses coherent dynamic effects strongly influence the spectral changes.

Original languageEnglish (US)
Pages (from-to)1185-1188
Number of pages4
JournalPhysical review letters
Volume62
Issue number10
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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