Title :
Coherent measurement of ultrashort THz pulses by terahertz-induced lensing
Author :
Schneider, A. ; Gunter, P.
Author_Institution :
Inst. of Quantum Electron., Swiss Fed. Inst. of Technol., Zurich, Switzerland
fDate :
27 Sept.-1 Oct. 2004
Abstract :
The spatial field distribution of a quasi single-cycle THz pulse leads to a time-dependent lens-like refractive index profile in an electro-optic crystal, which changes the beam shape of a copropagating optical probe pulse. We used this effect to measure THz waveforms in a highly birefringent crystal.
Keywords :
Pockels effect; birefringence; laser beam effects; organic compounds; refractive index; submillimetre wave imaging; Pockels effect; THz waveform measurement; beam shape; birefringent crystal; coherent measurement; copropagating optical probe pulse; electro-optic crystal; laser beam effects; quasi single cycle THz pulse; spatial field distribution; terahertz induced lensing; time dependent lens like refractive index profile; ultrashort THz pulses; Birefringence; Optical pulse shaping; Optical pulses; Optical refraction; Optical variables control; Probes; Pulse measurements; Refractive index; Shape; Submillimeter wave measurements;
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.2004.1422200
