FREQUENCY TUNABLE THz-GENERATION IN PERIODICALLY POLED LITHIUM NIOBATE CRYSTAL

Authors

  • G.K. Abgaryan Chair of Microwave Radiophysics and Telecommunication, YSU, Armenia

DOI:

https://doi.org/10.46991/PSYU:A/2014.48.2.046

Keywords:

terahertz generation, difference-frequency generation, optical rectification

Abstract

A simple method for the generation of quasi-monochromatic tunable terahertz (THz) pulses via optical rectification of femtosecond laser pulses in periodically poled lithium niobate (PPLN) crystal was proposed. It is shown that when the incidence angle on the crystal of the optical beam  changes in the range of –50° to +50°, the central frequency of the generated THz-radiation varies from ~0.77 to ~ 0.93 THz  and the direction of THz-radiation changes in the range of –10° to +10°. Thus, an appropriate choice of parameters PPLN and the angle of incidence of the laser beam is possible to obtain quasi-monochromatic THz-radiation tunable over a sufficiently wide frequency range.

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Published

2014-07-10

How to Cite

Abgaryan, G. (2014). FREQUENCY TUNABLE THz-GENERATION IN PERIODICALLY POLED LITHIUM NIOBATE CRYSTAL. Proceedings of the YSU A: Physical and Mathematical Sciences, 48(2 (234), 46–49. https://doi.org/10.46991/PSYU:A/2014.48.2.046

Issue

Section

Physics