Extract from Abstract
Online — “Light sources and detectors in the mid-infrared have been inferior to those in the visible or near-infrared, in terms of power, bandwidth, and sensitivity, severely limiting the performance of infrared experimental techniques.”
This article demonstrates the generation of femtosecond radiation with up to 5 W at 4.1 micrometers and 1.3 W at 8.5 micrometers, corresponding to an order-of-magnitude average power increase for ultrafast light sources operating at wavelengths longer than 5 micrometers.
The presented concept is based on power-scalable near-infrared lasers emitting at a wavelength near 1 micrometers, which pump optical parametric amplifiers.
In addition, both wavelength tunability and supercontinuum generation are reported, resulting in spectral coverage from 1.6 to 10.2 micrometers with power densities exceeding state-of-the-art synchrotron sources over the entire range.
The flexible frequency conversion scheme is highly attractive for both up-conversion and frequency comb spectroscopy, as well as for a variety of time-domain applications.
Research Article OPTICS online in full at: http://advances.sciencemag.org/content/4/4/eaaq1526.full
Title: Multi-watt, multi-octave, mid-infrared femtosecond source
Authors: Marcus Seidel1,*,†, Xiao Xiao1, Syed A. Hussain2, Gunnar Arisholm3, Alexander Hartung4, Kevin T. Zawilski5, Peter G. Schunemann5, Florian Habel2, Michael Trubetskov1, Vladimir Pervak2, Oleg Pronin1,† and Ferenc Krausz1,2
Citation: Science Advances 20 Apr 2018: Vol. 4, no. 4, eaaq1526 DOI: 10.1126/sciadv.aaq1526
1 Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, D-85748 Garching, Germany.
2 Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748 Garching, Germany.
3 FFI (Norwegian Defence Research Establishment), P.O. Box 25, NO-2027 Kjeller, Norway.
4 Leibniz-Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany.
5 BAE Systems, P.O. Box 868, Nashua, NH 03063, USA.
†Corresponding author. Email: firstname.lastname@example.org (M.S.); email@example.com (O.P.)
* Present address: Institut de Science et d’Ingénierie Supramoléculaires, 8 allée Gaspard Monge, 67000 Strasbourg, France.