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Novel Antenna-Integrated Photodiodes With Strained Absorbers Designed for Use as Terahertz Sources

Henning, Ian D and Adams, Michael J and Vaughan, Martin and Abraham, Thomas and Sun, Yun and Dyson, Angela and Moodie, David G and Rogers, Dave C and Cannard, Paul J and Dosanjh, Sukhjiban and Skuse, Mark and Firth, Richard J (2011) 'Novel Antenna-Integrated Photodiodes With Strained Absorbers Designed for Use as Terahertz Sources.' IEEE Journal of Selected Topics in Quantum Electronics, 17 (1). pp. 202-209. ISSN 1077-260X

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We present experimental results on the performance of antenna-integrated photodiodes intended for use as photomixers to provide a tunable broadband source of terahertz (THz) radiation. In a balanced strain-absorber structure, we show that the introduction of strain has proved effective in enhancing the performance at frequencies above 500 GHz. A comparison of strained and unstrained devices confirms this claim. These structures are integrated with a range of antennas, including log periodic and slothorn types, designed for wideband THz emission. Using the devices as photomixers for the outputs from a DFB laser and an external cavity laser in the 1550 nm telecom window, tunable emission is demonstrated over the range from 100 GHz to 1.8 THz. © 2010 IEEE.

Item Type: Article
Uncontrolled Keywords: Photodetectors; planar antenna; strain; submillimeter-wave generation
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 30 Jan 2012 16:41
Last Modified: 15 Jan 2022 00:19

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