Biexcition luminescence in nal

Biexciton luminescence of Nal is observed under excitation with intense laser light in the n = 1 exciton absorption region. The luminescence has two bands. The high-energy band is attributed to a biexciton state, which is a bound state of two free excitons, on the basis of the estimate of the bindin...

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Bibliographic Details
Published in:Radiation effects and defects in solids 1999-11, Vol.150 (1-4), p.85-88
Main Authors: Toyoda, K., Tsujibayashi, T., Hayashi, T.
Format: Article
Language:English
Subjects:
Alkali iodide
Biexcition
Excition
Luminescence
Nal
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Summary:Biexciton luminescence of Nal is observed under excitation with intense laser light in the n = 1 exciton absorption region. The luminescence has two bands. The high-energy band is attributed to a biexciton state, which is a bound state of two free excitons, on the basis of the estimate of the binding energy. Measurement of luminescence spectra at various temperatures reveals that the low-energy band originates from a bound biexciton, which is a bound state of a free exciton and a bound exciton.
ISSN:1042-0150
1029-4953
DOI:10.1080/10420159908226212