20 February 2017 Combined visible and near-infrared OPA for wavelength scaling experiments in strong-field physics
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Abstract
We report the operation of an optical parametric amplifier (OPA) capable of producing gigawatt peak-power laser pulses with tunable wavelength in either the visible or near-infrared spectrum. The OPA has two distinct operation modes (i) generation of > 350 μJ, sub 100 fs pulses, tunable between 1250 - 1550 nm; (ii) generation of > 170 μJ, sub 150 fs pulses tunable between 490 - 530 nm. We have recorded high-order harmonic spectra over a wide range of driving wavelengths. This flexible source of femtosecond pulses presents a useful tool for exploring the wavelength-dependence of strong-field phenomena, in both the multi-photon and tunnel ionization regimes.
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David T. Lloyd, David T. Lloyd, Kevin O'Keeffe, Kevin O'Keeffe, Adam S. Wyatt, Adam S. Wyatt, Patrick N. Anderson, Patrick N. Anderson, Daniel Treacher, Daniel Treacher, Simon M. Hooker, Simon M. Hooker, } "Combined visible and near-infrared OPA for wavelength scaling experiments in strong-field physics", Proc. SPIE 10088, Nonlinear Frequency Generation and Conversion: Materials and Devices XVI, 1008815 (20 February 2017); doi: 10.1117/12.2250775; https://doi.org/10.1117/12.2250775
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