DIRECT OBSERVATION OF A DYNAMIC BURSTEIN SHIFT IN A GaAs:Ge PLATELET LASER
- 1 February 1970
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (3), 93-95
- https://doi.org/10.1063/1.1653134
Abstract
Data (77°K) are presented showing a dynamic Burstein shift of the absorption edge during spontaneous and laser operation of GaAs:Ge platelets. This is indicated directly by an increase in the relative transmission of the pump power through the sample with increased pump excitation. By the use of pumps with photon energies (1.527 eV) closely matched to the GaAs absorption edge (1. 513 eV), changes in the relative transmission of from 4 to 30% have been achieved. The data presented also show a change in the rate of decrease of the absorption with the onset of stimulated emission by the platelet.Keywords
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