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

Autor:	D. C. Rogers, Michael J. Adams, T. Abraham, S Dosanjh, David G. Moodie, A. Dyson, Ian D. Henning, Yun Sun, Martin P Vaughan, P. J. Cannard, M Skuse, R. Firth
Rok vydání:	2011
Předmět:	Distributed feedback laser Materials science business.industry Terahertz radiation Capacitive sensing Photodetector Atomic and Molecular Physics and Optics Photodiode law.invention Optics law Broadband Optoelectronics Electrical and Electronic Engineering Wideband Antenna (radio) business
Zdroj:	IEEE Journal of Selected Topics in Quantum Electronics. 17:202-209
ISSN:	1558-4542 1077-260X
Popis:	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 slot-horn 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eccf330fbc916e8b74f3f32348657703 https://doi.org/10.1109/jstqe.2010.2049196 Zobrazit plný text záznamu