Title :
Enhanced terahertz radiation in a Smith-Purcell backward-wave oscillator by an inverse wet-etched grating
Author :
Kim, Jung-Il ; Jeon, Seok-Gy ; Kim, Geun-Ju ; Kim, Jaehong
Author_Institution :
Center for Pioneering Med.-Phys. Res. (CPMR), Korea Electrotechnol. Res. Inst., Ansan, South Korea
Abstract :
A terahertz Smith-Purcell backward-wave oscillator (BWO) with an inverse wet-etched grating based on silicon has been studied to enhance radiation intensity. Particle-in-cell simulation shows that the radiated power is increased up to 2.3 times higher at the radiated frequency of 0.66 THz for an electron-beam energy of 30 keV.
Keywords :
backward wave oscillators; etching; terahertz waves; inverse wet-etched grating; particle-in-cell simulation; radiated frequency; radiated power; radiation intensity; terahertz Smith-Purcell backward-wave oscillator; terahertz radiation; Electron beams; Etching; Gratings; Laser beams; Oscillators; Power harmonic filters; Silicon;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105239
