Absorption blue shift in laser-excited semiconductor microspheres

L. Banyai, S. W. Koch

Research output: Contribution to journalArticlepeer-review

90 Scopus citations


The energy of an electron-hole pair in laser-excited semiconductor microcrystallites is computed with plasma screening and dielectric polarization taken into account. A strong excitation-induced blue shift of the absorption is predicted which causes a large optical nonlinearity for crystallite sizes exceeding the bulk-exciton Bohr radius.

Original languageEnglish (US)
Pages (from-to)2722-2724
Number of pages3
JournalPhysical review letters
Issue number21
StatePublished - 1986

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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