Abstract
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 0.75W (average). The electrical and terahertz characteristics are analyzed.
| Language | English |
|---|---|
| Article number | 123109 |
| Number of pages | 6 |
| Journal | Journal of Applied Physics |
| Volume | 112 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 15 Dec 2012 |
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Keywords
- antennas
- diamond
- electrodes
- gallium arsenide
- heat sinks
- thermal conductivity
Cite this
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Diamond heat sinking of terahertz antennas for continuous-wave photomixing. / Ackemann, T.; Alduraibi, M.; Campbell, S.; Keatings, S.; Sam, P. Luke; Fraser, H.; Arnold, A. S.; Riis, E.; Missous, M.
In: Journal of Applied Physics, Vol. 112, No. 12, 123109 , 15.12.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - Diamond heat sinking of terahertz antennas for continuous-wave photomixing
AU - Ackemann, T.
AU - Alduraibi, M.
AU - Campbell, S.
AU - Keatings, S.
AU - Sam, P. Luke
AU - Fraser, H.
AU - Arnold, A. S.
AU - Riis, E.
AU - Missous, M.
PY - 2012/12/15
Y1 - 2012/12/15
N2 - 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 0.75W (average). The electrical and terahertz characteristics are analyzed.
AB - 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 0.75W (average). The electrical and terahertz characteristics are analyzed.
KW - antennas
KW - diamond
KW - electrodes
KW - gallium arsenide
KW - heat sinks
KW - thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=84886833474&partnerID=8YFLogxK
U2 - 10.1063/1.4770460
DO - 10.1063/1.4770460
M3 - Article
VL - 112
JO - Journal of Applied Physics
T2 - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 12
M1 - 123109
ER -