Spectroscopic studies of singlet exciton-thermalization in NaNO2 single crystals

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Abstract

The relaxation of singlet excitons in NaNO2 crystals upon excitation has been investigated by means of fluorescence excitation spectroscopy and fluorescence line narrowing techniques. The comparison of the observed evolution of the exciton states in time with former data concerning the transfer of the excitation energy through the crystal indicates a coherent behaviour of the singlet excitons at low temperatures.

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  • 1

    Present address: Huygens Laboratories, University of Leiden, P.O. Box 9504, 2300 RA Leiden, The Netherlands.

    2

    Present address: Max-Planck-Institut für Strahlenchemie, Stiftstr. 34, W-4330 Mülheim/Ruhr, Germany.

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