Title :
Terahertz transition radiation
Author :
Nikoghosyan, A.S. ; Laziev, E.M. ; Martirosyan, R.M. ; Hakhoumian, A.A.
Author_Institution :
Dept. of Microwave Eng., Yerevan State Univ., Armenia
fDate :
27 Sept.-1 Oct. 2004
Abstract :
We report on the observation of transition radiation generated by short optical pulses crossing the boundary between linear and non-linear materials. Unlike transition radiation observed with moving charges, we observe terahertz generation at the boundary between two media traversed by a femtosecond optical pulses. Contribution from bulk nonlinear difference frequency generation is also observed, but for the first time these effects can be separated.
Keywords :
optical frequency conversion; optical pulse generation; submillimetre wave generation; transition radiation; femtosecond optical pulses; nonlinear difference frequency generation; nonlinear materials; terahertz generation; terahertz transition radiation; Frequency; Laboratories; Optical attenuators; Optical polarization; Optical pulse generation; Optical pulses; Optical reflection; Optical surface waves; Optical waveguides; Virtual colonoscopy;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422002
