Title :
Generation of THz radiation from a periodic electrostatic field via a relativistic ionization front
Author :
Suzuki, F. ; Ono, S. ; Anno-Kashiwazaki, H. ; Terauchi, H. ; Higashiguchi, T. ; Yugami, N. ; Sentoku, Y. ; Kodama, R. ; Jiang, W.
Author_Institution :
Grad. Sch. of Eng. & Center for Opt. Res. & Educ. (CORE), Utsunomiya Univ., Utsunomiya, Japan
Abstract :
We have a demonstrated the terahertz radiation by the interaction between a laser created relativistic underdense ionization front and a sinusoidal electrostatic field. The central frequencies of the radiation are observed to from 0.2 to 0.6 THz at the laser intensity at 3.5 × 1014 W/cm2. Lower frequency component is independent of the plasma frequency and higher one is attributed to the radiation from DARC structure.
Keywords :
plasma density; plasma light propagation; plasma transport processes; relativistic plasmas; terahertz waves; DARC structure; frequency 0.2 THz to 0.6 THz; laser intensity; periodic electrostatic field; plasma frequency; radiation central frequencies; relativistic underdense ionization front; sinusoidal electrostatic field; terahertz radiation;
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.2011.6105222
