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Proceedings Paper

Analysis of THz-wave difference-frequency generation in two-dimensional domain-inverted structure
Author(s): Yu. Avetisyan; A. Hakhoumian; Y. Sasaki; H. Yokoyama; H. Ito
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Paper Abstract

We present theoretical and experimental results of surface-emitted THz-wave difference frequency generation (DFG) in 2 dimensional (D) periodically poled lithium niobate (PPLN) crystal. The two orthogonal periodic structures compensate the phase mismatch in two mutually perpendicular directions of the optical and THz-wave propagation. The tunable 1.5 - 1.8 THz wave generation with impulse power of 0.1 mW and repetition rate 1 MHz is obtained. The opportunity of the power enhancement using an interference of THz fields generated by the both forward and backward propagating optical waves is investigated. The power and radiation pattern of generated of THz-wave are calculated in far-field approximation. Analysis of THz-wave DFG in 2D PPLN and its correlation with experimental data is presented.

Paper Details

Date Published: 7 November 2005
PDF: 10 pages
Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 59891I (7 November 2005); doi: 10.1117/12.630389
Show Author Affiliations
Yu. Avetisyan, Yerevan State Univ. (Armenia)
A. Hakhoumian, Yerevan State Univ. (Armenia)
Y. Sasaki, Tohoku Univ. (Japan)
H. Yokoyama, Tohoku Univ. (Japan)
H. Ito, Tohoku Univ. (Japan)
RIKEN (Japan)


Published in SPIE Proceedings Vol. 5989:
Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II
Sean M. Kirkpatrick; David H. Titterton; Roger Appleby; J. Martyn Chamberlain; Razvan Stoian; Keith A. Krapels, Editor(s)

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