Title :
Laser-driven LiNbO3 crystal wedge THz antenna
Author :
Nikoghosyan, A.S.
Author_Institution :
Yerevan State Univ., Yerevan, Armenia
Abstract :
Results on THz pulse generation in the 0.1-2.5 THz band via optical rectification of femtosecond laser pulses in a wedge crystal are presented. The finite-element method was employed to model and simulate the THz wave propagation in a LiNbO3 wedge antenna in order to analyze experimental results; and to visualize how the form of the crystal influences the THz radiation both inside and outside the crystal in the near-field zone.
Keywords :
antenna radiation patterns; lithium compounds; millimetre wave antennas; niobium compounds; wave propagation; FEM; LiNbO3; THz radiation; THz wave propagation; femtosecond laser pulses; finite-element method; frequency 0.1 THz to 2.5 THz; laser-driven crystal wedge THz antenna; near-field zone; optical rectification; Crystals; Lithium niobate; Nonlinear optics; Optical imaging; Optical pulses; Optical waveguides;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665787
