Extremely Nonlinear Optics Using Shaped Pulses Spectrally Broadened in an Argon- or Sulfur Hexafluoride-Filled Hollow-Core Fiber
1
Institute of Optics and Quantum Electronics, Abbe Center of Photonics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany
2
Helmholtz Institute Jena, Helmholtzweg 4, 07743 Jena, Germany
*
Author to whom correspondence should be addressed.
†
Present address: Chemistry Department, University of California, Berkeley, CA 94720, USA
Academic Editor: Totaro Imasaka
Appl. Sci. 2015, 5(4), 1310-1322; https://doi.org/10.3390/app5041310
Received: 23 September 2015 / Accepted: 16 November 2015 / Published: 20 November 2015
(This article belongs to the Special Issue Fibre Lasers: From Underlying Science and Technology to Applications)
In this contribution we present a comparison of the performance of spectrally broadened ultrashort pulses using a hollow-core fiber either filled with argon or sulfur hexafluoride (SF6) for demanding pulse-shaping experiments. The benefits of both gases for pulse-shaping are studied in the highly nonlinear process of high-harmonic generation. In this setup, temporally shaping the driving laser pulse leads to spectrally shaping of the output extreme ultraviolet (XUV) spectrum, where total yield and spectral selectivity in the XUV are the targets of the optimization approach. The effect of using sulfur hexafluoride for pulse-shaping the XUV yield can be doubled compared to pulse compression and pulse-shaping using argon and the spectral range for selective optimization of a single harmonic can be extended. The obtained results are of interest for extending the range of ultrafast science applications drawing on tailored XUV fields.
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Keywords:
sulfur hexafluoride; nonlinear fiber optics; ultrashort laser pulses; pulse-shaping; atomic and molecular physics; high-harmonic generation
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MDPI and ACS Style
Hoffmann, A.; Zürch, M.; Spielmann, C. Extremely Nonlinear Optics Using Shaped Pulses Spectrally Broadened in an Argon- or Sulfur Hexafluoride-Filled Hollow-Core Fiber. Appl. Sci. 2015, 5, 1310-1322.
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