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Investigation Of Gaas Double Heterostructures For Photonic Heat Engines, Nathan Giannini-Hutchin
Investigation Of Gaas Double Heterostructures For Photonic Heat Engines, Nathan Giannini-Hutchin
Optical Science and Engineering ETDs
The creation of a laser cooled semiconductor device has been a long sought achievement. GaAs-based devices have emerged as a promising candidate for the realization of this goal. Efforts to improve the efficiency of such devices have enabled the material to exhibit external quantum efficiencies (EQE, a measure of the probability that an excitation leads to the emission of a photon) of 99.5\%. Despite this impressive feat, a laser coolable device remains elusive.
To investigate the obstacles to such a device, the material characteristics of GaAs-based double heterostructures (DHS) are theoretically and experimentally examined. Through this study, a GaAs $\vert$ …