Compact source of continuously and widely-tunable terahertz radiation

T. J. Edwards; D. Walsh; M. B. Spurr; C. F. Rae; M. H. Dunn; P. G. Browne

doi:10.1364/OE.14.001582

Compact source of continuously and widely-tunable terahertz radiation

T. J. Edwards^*, D. Walsh, M. B. Spurr, C. F. Rae, M. H. Dunn, P. G. Browne

^*Corresponding author for this work

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Abstract

We report a THz radiation source based on the technique of non-collinear phasematched parametric generation. The source, which is compact and operable at room temperature, generates nanosecond pulses of peak power and energy greater than 1W and 5 nJ respectively. The radiation is continuously tunable over the range 1.2-3.05 THz and is of narrow spectral bandwidth (<100 GHz). The use of intersecting pump and parametric wave cavities results in threshold pump pulse energies below 1 mJ (from a Nd:YAG laser excited at 20 W, 500 μsec by a quasi-CW diodelaser) and close to 50% down-conversion efficiency when operated at twice threshold.

Original language	English
Pages (from-to)	1582-1589
Number of pages	8
Journal	Optics Express
Volume	14
Issue number	4
DOIs	https://doi.org/10.1364/OE.14.001582
Publication status	Published - 2006

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abstract = "We report a THz radiation source based on the technique of non-collinear phasematched parametric generation. The source, which is compact and operable at room temperature, generates nanosecond pulses of peak power and energy greater than 1W and 5 nJ respectively. The radiation is continuously tunable over the range 1.2-3.05 THz and is of narrow spectral bandwidth (<100 GHz). The use of intersecting pump and parametric wave cavities results in threshold pump pulse energies below 1 mJ (from a Nd:YAG laser excited at 20 W, 500 μsec by a quasi-CW diodelaser) and close to 50% down-conversion efficiency when operated at twice threshold.",

author = "Edwards, {T. J.} and D. Walsh and Spurr, {M. B.} and Rae, {C. F.} and Dunn, {M. H.} and Browne, {P. G.}",

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AU - Walsh, D.

AU - Spurr, M. B.

AU - Rae, C. F.

AU - Dunn, M. H.

AU - Browne, P. G.

PY - 2006

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AB - We report a THz radiation source based on the technique of non-collinear phasematched parametric generation. The source, which is compact and operable at room temperature, generates nanosecond pulses of peak power and energy greater than 1W and 5 nJ respectively. The radiation is continuously tunable over the range 1.2-3.05 THz and is of narrow spectral bandwidth (<100 GHz). The use of intersecting pump and parametric wave cavities results in threshold pump pulse energies below 1 mJ (from a Nd:YAG laser excited at 20 W, 500 μsec by a quasi-CW diodelaser) and close to 50% down-conversion efficiency when operated at twice threshold.

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JO - Optics Express

JF - Optics Express

SN - 1094-4087

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Compact source of continuously and widely-tunable terahertz radiation

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