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Characterization of non-linear Potassium crystals in the Terahertz frequency domain

✍ Scribed by P. Mounaix; L. Sarger; J.P. Caumes; E. Freysz

Book ID
104072832
Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
326 KB
Volume
242
Category
Article
ISSN
0030-4018

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✦ Synopsis

Systematic measurements of the dielectric properties of KDP, KNbO 3 , KTP and KTA non-linear crystals in the Terahertz (THz) spectral range are presented. The index of refraction and the absorption coefficients are measured between 0.1 and 1.5 THz for different crystallographic orientations. The data are deduced from an experimental set-up based on standard Terahertz time domain spectroscopy system at room temperature. These data, key parameters for the optimization of non-linear THz generation by optical rectification as well as electro-optic detection, are analysed in term of non-linear capabilities. We finally review different methods making possible to generate THz wave in these crystals and compare their characteristics.

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