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Photon Recycling in Double Heterostructures. I. The Case of Perfect Optical Confinement
Author(s) -
Enders P.
Publication year - 1986
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.2221370135
Subject(s) - photoluminescence , heterojunction , photon , semiconductor , absorption (acoustics) , luminescence , radiative transfer , optoelectronics , radiation , direct and indirect band gaps , physics , band gap , spontaneous emission , atomic physics , materials science , optics , laser
The influence of photon recycling onto the minority carrier distribution in double heterostructures is investigated. For perfect optical confinement of the luminescence radiation, the corresponding integro‐differential equation (without drift term) is solved exactly. The enlargement of the radiative lifetime, as measured in photoluminescence experiments, is calculated for various forms of the absorption coefficients, appropriate for band‐to‐band processes in direct‐gap semiconductors.