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Proceedings Paper

High energy Yb:CaF2 femtosecond laser for efficient terahertz generation in lithium niobate
Author(s): C. Vicario; B. Monoszlai; Cs. Lombosi; A. Mareczko; A. Courjaud; J. A. Fülöp; C. P. Hauri
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Paper Abstract

We investigated intense Terahertz generation in lithium niobate pumped by a powerful Yb:CaF2 laser at room temperature and 25 K. This unique amplifier system delivers transform-limited pulses of variable duration (0.38-0.65 ps) with pulse energies up to 12 mJ at a central wavelength of 1030 nm. From theoretical investigations it is expected that those laser parameters are excellently suited for efficient THz generation. In this study we present experimental results on both the conversion efficiency and the THz spectral shape for a series of transform-limited pump pulse durations and crystal temperatures and discuss the optimum pump parameters for most efficient THz generation.

Paper Details

Date Published: 20 February 2014
PDF: 6 pages
Proc. SPIE 8964, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII, 89641O (20 February 2014); doi: 10.1117/12.2040048
Show Author Affiliations
C. Vicario, Paul Scherrer Institut (Switzerland)
B. Monoszlai, Paul Scherrer Institut (Switzerland)
Univ. of Pécs (Hungary)
Cs. Lombosi, Univ. of Pécs (Hungary)
A. Mareczko, Amplitude Systèmes (France)
A. Courjaud, Amplitude Systèmes (France)
J. A. Fülöp, MTA-PTE High-Field Terahertz Research Group (Hungary)
ELI-Hu Nkft. (Hungary)
C. P. Hauri, Paul Scherrer Institut (Switzerland)
Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 8964:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIII
Konstantin L. Vodopyanov, Editor(s)

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