Software Design for Modeling Quantum Cascade Lasers and Long Wavelength (~16μm) GaAs/AlGaAs Quantum Cascade Lasers PDF Download
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Author: Ming Lyu
Publisher:
ISBN:
Category : Quantum optics
Languages : en
Pages : 0
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Author: Ming Lyu
Publisher:
ISBN:
Category : Quantum optics
Languages : en
Pages : 0
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Author: Benjamin Stanford Williams
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ISBN:
Category :
Languages : en
Pages : 115
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Author: Giuseppe Scarpa
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ISBN: 9783932749506
Category :
Languages : en
Pages : 190
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Category :
Languages : en
Pages : 81
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Author: Stefan Gianordoli
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Category :
Languages : en
Pages : 148
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Author: Sylvain Mathonnière
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Category :
Languages : en
Pages : 0
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Author: Zeila Zanolli
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Category :
Languages : en
Pages : 126
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Author: Jochen Ulrich
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Category :
Languages : en
Pages : 157
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Author:
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Category :
Languages : en
Pages : 11
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The objectives of this program were threefold: to reproduce the quantum cascade laser results from Bell Labs in a production environment, to demonstrate the quantum cascade laser at longer wavelengths, and to extend the technology to the GaAs/AlGaAs material system in order to make the lasers easier to produce. After characterization with 5-crystal x-ray diffraction and photoluminescence to verify the material quality three laser wafers, with anticipated operating wavelengths near 4.5 microns and 8.5 microns, were grown, processed, and tested for this program. Although we were able to successfully grow the very thick lattice matched layers necessary for these devices, no lasing or electroluminescence was observed from any of the samples. Another laser design was produced based on the reported quantum cascade laser structures, but utilizing GaAs and AlGaAs materials instead of InGaAs and InAlAs; however, because of the negative results with the InGaAs/InAlAs structure and additional design uncertainties for the AlGaAs materials, this structure was not grown. This report will discuss in detail the work that was performed on the contract, possible cause for the negative results, and conclusions drawn from the work.
Author: Martin F. Schubert
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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