Le Du, M. and Massoubre, David and Harmand, J.C. and Oudar, J.L. (2006) Thermal conductance of laterally-wet-oxidised GaAs/AlxOy Bragg reflectors. Electronics Letters, 42 (18). pp. 1060-1062. ISSN 0013-5194
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
Thermal resistivity measurements were carried out on GaAs-based monolithic saturable absorber microcavities. Two-types of microcavity mirrors were compared: GaAs/AlAs against GaAs/AlxOy Bragg reflectors processed by lateral-wet-oxidation of Al(Ga)As layers. It is found that GaAs/AlxOy mirrors are not efficient heat dissipators, the GaAs/AlxOy microcavity structure showing a thermal resistivity more than ten times higher than the GaAs/AlAs structure. Using modelling to fit the experimental data, thermal conductivity of the 250 nm AlxOy layers is estimated to be approximately 0.007 WK–1cm–1. These results illustrate a significant drawback related to the use of thick wet-oxidised Al(Ga)As/GaAs layers
| Item type: | Article |
|---|---|
| ID code: | 38064 |
| Keywords: | thermal conductance, Bragg reflectors, thermal conductivity , thermal resistivity measurements, GaAs-based absorber microcavities, microcavity mirrors, monolithic absorber microcavities, lateral-wet-oxidation , saturable absorber microcavities , Optics. Light |
| Subjects: | Science > Physics > Optics. Light |
| Department: | Faculty of Science > Institute of Photonics |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 01 Mar 2012 14:37 |
| Last modified: | 12 Mar 2012 11:49 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/38064 |
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