Evaluation of DAST and zinc telluride nonlinear crystals for efficient terahertz generation

Journal Article · Fri Jul 31 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4926684· OSTI ID:22488645

Venkatesh, M.; Rao, K. S.

Terahertz (THz) signal is generated from 4-N, N-dimethylamino-4’-N’-methyl-stilbazolium tosylate (i.e. DAST Crystal) and Zinc telluride (ZnTe) nonlinear crystals by employing 140 fs laser pulses at 800 nm with 80 MHz repetition rate. The semi insulating gallium arsenide photoconductive stripline antennas (gap =5 µm, length = 20 µm) is used as a Terahertz detector. The detected temporal profile of Terahertz radiation generated from DAST crystal is high as compared to ZnTe crystal in terms of amplitude. THz effective bandwidths of these crystals are extended up to 1.1 THz range. The potential of THz generation of DAST and ZnTe crystals are evaluated with respect to incident laser power.

• OSTI ID: 22488645
• Journal Information: AIP Conference Proceedings, Vol. 1670, Issue 1; Conference: EIPT-2015: International conference on emerging interfaces of plasma science and technology, Ujjain (India), 9-10 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
ANTENNAS
AZOLES
COMPARATIVE EVALUATIONS
CRYSTALS
GALLIUM ARSENIDES
LASER RADIATION
LASERS
MHZ RANGE
NONLINEAR PROBLEMS
PHOTOCONDUCTIVITY
PULSED IRRADIATION
SIGNALS
THZ RANGE
ZINC
ZINC TELLURIDES