Premium
Energy Level Structure of Biexcitons and Related Optical Transitions
Author(s) -
Bassani F.,
Forney J. J.,
Quattropani A.
Publication year - 1974
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.2220650218
Subject(s) - biexciton , excitation , photon , atomic physics , luminescence , physics , exciton , crystal (programming language) , ground state , electron , spin (aerodynamics) , condensed matter physics , quantum mechanics , optics , computer science , thermodynamics , programming language
The states of the biexciton molecule are related to the band structure of the crystal and effects due to spin–orbit interaction and to electron–hole exchange are taken into account. The cases of CuCl and CdS are explicitly studied and the possible bound states are given. Optical luminescence decay processes and two‐photon excitation processes are discussed and related selection rules are given. In the case of CdS all decay processes are shown to produce polarized photons. Experimental results are analyzed and are compared with theoretical calculations of the biexciton ground state energy.