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Diamond heat sinking of terahertz antennas for continuous-wave photomixing

Ackemann, T.; Alduraibi, M.; Campbell, S.; Keatings, S.; Luke Sam, P.; Fraser, H.; Arnold, A. S.; Riis, E. and Missous, M. (2012). Diamond heat sinking of terahertz antennas for continuous-wave photomixing. Journal of Applied Physics, 112(12), article no. 123109.

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The generation of cw Terahertz radiation from photomixing in low-temperature grown GaAs is limited by the thermal load for single emitters. We propose a new heat sinking scheme based on high thermal conductivity, transparent crystalline heat spreaders as diamond in direct contact with the active zone. A first working device based on recessed electrodes is demonstrated and has a significant power dissipation capability of more than 0.75 W (average). The electrical and terahertz characteristics are analyzed.

Item Type: Journal Item
Copyright Holders: 2012 American Institute of Physics
ISSN: 0021-8979
Extra Information: This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Keywords: antennas; diamond; electrodes; gallium arsenide; heat sinks; microwave photonics; photoconducting devices; terahertz waves; thermal conductivity; radiowave and microwave technology; antennas: theory, components and accessories; optoelectronic devices
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 37452
Depositing User: Helen Fraser
Date Deposited: 18 Apr 2013 11:27
Last Modified: 06 Jun 2020 08:33
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