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Quantifying pressure‐dependent recombination currents in GaInNAs lasers using spontaneous emission measurements
Author(s) -
Jin S. R.,
Sweeney S. J.,
Tomić S.,
Adams A. R.,
Riechert H.
Publication year - 2003
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.200301607
Subject(s) - auger effect , auger , hydrostatic pressure , laser , current (fluid) , spontaneous emission , atomic physics , materials science , current density , recombination , chemistry , optics , physics , thermodynamics , gene , biochemistry , quantum mechanics
The pressure dependence of the total threshold current and its respective recombination components in 1.3 μm GaInNAs single quantum‐well lasers has been determined by measuring for the first time the window‐spontaneous emission under hydrostatic pressures at room temperature. It is shown that, above 6 kbar, the rapid increase of the threshold current with increasing pressure in GaInNAs lasers is related to the unusual increase of the Auger recombination current, while the monomolecular non‐radiative current in the total threshold current is almost constant in the pressure range studied. Theoretical calculations show that the unusual increase of the Auger current is due to a large increase in the threshold carrier density with pressure, stronger than the reduction of the Auger coefficient leading to an overall increase in the Auger current.