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In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers
In this paper, we have examined the influence of electroplated gold thickness on the thermal and electro-optical properties of mid-IR AlInAs/InGaAs, InP QCLs. The experimental results show a significant reduction of the temperature of QCL active region (AR) with increasing gold layer thickness. For...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658302/ https://www.ncbi.nlm.nih.gov/pubmed/34885516 http://dx.doi.org/10.3390/ma14237352 |
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author | Pierścińska, Dorota Pierściński, Kamil Sobczak, Grzegorz Krajewska, Katarzyna Chmielewski, Krzysztof Kuźmicz, Aleksandr Piskorski, Krzysztof Gutowski, Piotr |
author_facet | Pierścińska, Dorota Pierściński, Kamil Sobczak, Grzegorz Krajewska, Katarzyna Chmielewski, Krzysztof Kuźmicz, Aleksandr Piskorski, Krzysztof Gutowski, Piotr |
author_sort | Pierścińska, Dorota |
collection | PubMed |
description | In this paper, we have examined the influence of electroplated gold thickness on the thermal and electro-optical properties of mid-IR AlInAs/InGaAs, InP QCLs. The experimental results show a significant reduction of the temperature of QCL active region (AR) with increasing gold layer thickness. For QCLs with 5.0 μm gold thickness, we observed a 50% reduction of the active region temperature. An improvement of key electro-optical parameters, that is, threshold current density and maximum emitted power for structures with thick gold, was observed. The results of micro-Raman characterization show that the electroplated gold layer introduces only moderate compressive strain in top InP cladding, which is well below the critical value for the creation of misfit dislocations. |
format | Online Article Text |
id | pubmed-8658302 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86583022021-12-10 In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers Pierścińska, Dorota Pierściński, Kamil Sobczak, Grzegorz Krajewska, Katarzyna Chmielewski, Krzysztof Kuźmicz, Aleksandr Piskorski, Krzysztof Gutowski, Piotr Materials (Basel) Article In this paper, we have examined the influence of electroplated gold thickness on the thermal and electro-optical properties of mid-IR AlInAs/InGaAs, InP QCLs. The experimental results show a significant reduction of the temperature of QCL active region (AR) with increasing gold layer thickness. For QCLs with 5.0 μm gold thickness, we observed a 50% reduction of the active region temperature. An improvement of key electro-optical parameters, that is, threshold current density and maximum emitted power for structures with thick gold, was observed. The results of micro-Raman characterization show that the electroplated gold layer introduces only moderate compressive strain in top InP cladding, which is well below the critical value for the creation of misfit dislocations. MDPI 2021-11-30 /pmc/articles/PMC8658302/ /pubmed/34885516 http://dx.doi.org/10.3390/ma14237352 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pierścińska, Dorota Pierściński, Kamil Sobczak, Grzegorz Krajewska, Katarzyna Chmielewski, Krzysztof Kuźmicz, Aleksandr Piskorski, Krzysztof Gutowski, Piotr In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title | In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title_full | In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title_fullStr | In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title_full_unstemmed | In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title_short | In-Depth Experimental Analysis of Influence of Electroplated Gold Thickness on Thermal and Electro-Optical Properties of mid-IR AlInAs/InGaAs/InP Quantum Cascade Lasers |
title_sort | in-depth experimental analysis of influence of electroplated gold thickness on thermal and electro-optical properties of mid-ir alinas/ingaas/inp quantum cascade lasers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658302/ https://www.ncbi.nlm.nih.gov/pubmed/34885516 http://dx.doi.org/10.3390/ma14237352 |
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