Title :
Generation of 5 pJ THz pulses with 200 kHz repetition rate by femtosecond tilted-pulse-front excitation
Author :
Hebling, Janos ; Kozma, Ida Z. ; Almási, Gábor ; Stepanov, Andrei ; Kuhl, Jürgen
Author_Institution :
Dept. of Experimental Phys., Univ. of Pecs, Hungary
Abstract :
Velocity-matched efficient ultrashort THz pulse generation is achieved in a lithium niobate crystal by tilting the intensity front of the Tirsapphire laser excitation pulses. The generated broad-band THz radiation has a divergence smaller than 30 mrad, and a center frequency larger than 2 THz. The energy conversion efficiency is close to 10/sup -5/.
Keywords :
lithium compounds; microwave spectroscopy; optical frequency conversion; optical pulse generation; sapphire; submillimetre wave generation; titanium; 2 THz; Al/sub 2/O/sub 3/:Ti; LiNbO/sub 3/; THz pulse generation; Ti:sapphire laser excitation pulses; broad-band THz radiation generation; efficient ultrashort THz pulse generation; energy conversion efficiency; femtosecond tilted-pulse-front excitation; lithium niobate crystal; repetition rate; velocity-matching; Autocorrelation; Birefringence; Bolometers; Energy conversion; Frequency; Laser excitation; Optical pulse generation; Pulse amplifiers; Pulse generation; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO '03. Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-748-2
