Title :
Laser driven terahertz dielectric wedge antenna placed in free space or in hollow metallic waveguide
Author :
Nikoghosyan, A.S.
Author_Institution :
Dept. of Radiophys., Yerevan State Univ., Yerevan, Armenia
Abstract :
Results on effective generation of terahertz (THz) radiation in band 0.1-2.5 THz via optical rectification of femtosecond laser pulses in LiNbO3 plate tapered at the end are presented. It is shown that placing the LiNbO3 crystal in the free space and in the waveguide both the phase-matching and time and spectral features of the emitted THz field are changed.
Keywords :
dielectric waveguides; high-speed optical techniques; lithium compounds; millimetre wave antennas; submillimetre wave antennas; terahertz wave generation; LiNbO3; bandwidth 0.1 THz to 2.5 THz; femtosecond laser pulse; free space; hollow metallic waveguide; laser driven terahertz dielectric wedge antenna; lithium niobate crystal; optical rectification; phase matching; terahertz radiation generation; Crystals; Nonlinear optics; Optical polarization; Optical pulses; Optical waveguides;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5613044
