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Quantitative investigation of the n = 1 exciton line of the green series of Cu 2 O by a wavelength modulation technique
Author(s) -
Daunois A.,
Merle J. C.,
Deiss J. L.,
Nikitine S.
Publication year - 1972
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220500231
Subject(s) - oscillator strength , wavelength , line (geometry) , series (stratigraphy) , modulation (music) , differential (mechanical device) , exciton , physics , optics , dipole , spectrum (functional analysis) , character (mathematics) , spectral line , mathematics , quantum mechanics , geometry , acoustics , paleontology , thermodynamics , biology
The n = 1 line of the green series of Cu 2 O has been investigated recently using a differential electroabsorption method. The oscillator strength of this line has also been evaluated theoretically and compared to a rough experimental measurement. In this paper, a method is developed to deduce the oscillator strength from the differential wavelength modulated spectrum and a more accurate value is obtained for the n = 1 green line. It is confirmed furthermore that this line is not polarized which implies a predominant magnetic dipole character.