Room-temperature excitonic optical nonlinearities of molecular beam epitaxially grown ZnSe thin films

N. Peyghambarian, S. H. Park, S. W. Koch, A. Jeffery, J. E. Potts, H. Cheng

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Large optical nonlinearities have been observed in molecular beam epitaxially grown thin films of ZnSe at room temperature and at T=150 K. A comparison with a plasma theory indicates that in both cases exciton screening is the dominating mechanism for the nonlinearity. The maximum nonlinear index per excited electron-hole pair at room temperature is comparable to that of bulk GaAs and GaAs-AlGaAs multiple quantum wells. The measured absorption and nonlinear index spectra agree quite well with our calculated values.

Original languageEnglish (US)
Pages (from-to)182-184
Number of pages3
JournalApplied Physics Letters
Issue number3
StatePublished - Dec 1 1988


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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