Demonstration of a Tilted-Pulse-Front Pumped Plane-Parallel Slab Terahertz Source

Priyo Syamsul Nugraha; Gergő Krizsán; Csaba Lombosi; László Pálfalvi; György Tóth; GÁbor Almási; József András Fülöp; János Hebling

arXiv · 1808.06122

Demonstration of a Tilted-Pulse-Front Pumped Plane-Parallel Slab Terahertz Source

Priyo Syamsul Nugraha·Gergő Krizsán·Csaba Lombosi·László Pálfalvi·György Tóth·GÁbor Almási·József András Fülöp·János Hebling

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Abstract

A new type of tilted-pulse-front pumped terahertz (THz) source has been demonstrated, which is based on a lithium niobate plane-parallel slab with an echelon structure on its input surface. Single-cycle pulses of 1 microjoule energy and 0.30 THz central frequency have been generated with 0.05% efficiency from such a source. One order-of-magnitude increase in efficiency is expected by pumping a cryogenically cooled echelon of increased size and thickness with a Ti:sapphire laser. The use of a plane-parallel nonlinear optical crystal slab enables straightforward scaling to high THz pulse energies and to produce a symmetric THz beam with uniform pulse shape for good focusability and high field strength.

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Priyo Syamsul Nugraha, Gergő Krizsán, Csaba Lombosi, László Pálfalvi, György Tóth, GÁbor Almási, József András Fülöp, János Hebling. 2018-08-18. Demonstration of a Tilted-Pulse-Front Pumped Plane-Parallel Slab Terahertz Source. https://arxiv.org/abs/1808.06122

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