Abstract
The International Scientific Research Organization for Science, Engineering and Technology (ISROSET) is a Non-Profit Organization; The ISROSET is dedicated to improvement in academic sectors of Science (Chemistry, Bio-chemistry, Zoology, Botany, Biotechnology, Pharmaceutical Science, Bioscience, Bioinformatics, Biometrics, Biostatistics, Microbiology, Environmental Management, Medical Science, Forensic Science, Home Science, Library Science, Material Science Military Science, Physical Science, Physical Education Science, Educational Science, Fisheries, seed technology, Agriculture, Forestry Science, Mathematics, Physics, Statistics and Geology/Earth Science), Computer Science, Engineering and Information Technology, Commerce, Management, Economics Sociology and Social Science.
Highlights
There has been a consistently growing research interest for last two decades, in the field of generation and manipulation of THz wave which occupies the frequency range from 0.1 to 10 THz of the electromagnetic spectrum
Optical rectification has been shown to be an efficient way for generating either single cycle broad band or muti-cycle narrow band THz radiation. This process generates carrier envelope phase stable THz and electro-optic sampling is the best technique for detection of such THz pulse
Optical frequency components get rectified by way of difference frequency generation (DFG) in a nonlinear optical crystal and a low frequency THz field is generated
Summary
Greater efficiency was observed for GaAs and reason was dispersion of second order susceptibility They used a dipoler antenna as detector of the THz and the probe pulse from same laser was used to gate the emitted radiation (THz) from zinc-blende crystals. An innovative technique of using a quarter wave plate to produce extraordinary and ordinary polarization was demonstrated and the phase-matching for OR was achieved in GaSe crystal to generate bandwidth limited THz pulse [36]. Large aperture ZnTe was used to increase the THz generation efficiency energies up to 1.5 μJ per pulse and a spectral range extending to 3 THz were obtained using a 100 Hz Ti:sapphire laser source and a 75-mm diameter, 0.5-mm-thick, (110) cut ZnTe crystal, corresponding to an average power of 150 μW and an energy conversion efficiency of 3.1 x 10-5 [44].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
