THz radiation in graphene based on quasi-ballistic electron reflection

The generation of THz signal by quasi-ballistic electron reflection in a monolayer graphene is demonstrated by using ensemble Monte Carlo method. The device consists of a monolayer graphene acts as a channel confined between two thick oxide layer. The device is powered by an alternating constant bia...

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Bibliographic Details
Published in2017 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics (PrimeAsia) pp. 13 - 16
Main Authors Abidin, Badrul Iman, Hoe, Yeoh Keat, Khok, Yong Thian, Sheng, Ong Duu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2017
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Summary:The generation of THz signal by quasi-ballistic electron reflection in a monolayer graphene is demonstrated by using ensemble Monte Carlo method. The device consists of a monolayer graphene acts as a channel confined between two thick oxide layer. The device is powered by an alternating constant bias to simulate the electronic transport in the channel. A gradual increase in the radiation amplitude is observed with decreasing channel length and increase in applied bias. Our simulations shows that quasi-ballistic electron reflection in graphene is capable of producing THz radiation up to 4 THz for channel length of 500 nm.
ISSN:2159-2160
DOI:10.1109/PRIMEASIA.2017.8280352