Carbon nanotubecathode based miniature coherent radiation source at THz frequency

IV-6: Carbon nanotube cathode based miniature coherent radiation source at THz frequency

Asst Prof Ang Lay Kee, Ricky (EEE6)
Assoc Prof Lau Shu Ping, Daniel (EEE6)
Assoc Prof Tan Cher Ming (EEE6)
Assoc Prof Tay Beng Kang (EEE6)

Abstract

The research is to study and develop a high current and stable carbon-nanotube (CNT) cathode for miniature high power coherent radiation source at THz frequency. The proposal will investigate the nano-physics of electron emission from CNT, and also explore its capability of large area high current density up to the order of kA/cm2. Using such an advanced high current cathode to produce stable CNT electron beam, we will develop a compact THz radiation source by proposing various theoretical designs and also fabricating the key components of the device. The proposed compact THz design is aimed to operate at room temperature, and has a power output (CW) in the range of 10 mW to 10 W (with high efficiency), which is currently not available.

# Email: elkang@ntu.edu.sg, Telephone: 6790-4228