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Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 58: Poster: Quantum Optics and Photonics IV

Q 58.53: Poster

Thursday, March 3, 2016, 16:30–19:00, Empore Lichthof

Sub two-cycle optical pulse compression from Ti:sapphire oscillators — •Philip Dienstbier1, Takuya Higuchi1, John Travers2, Francesco Tani2, Michael Frosz2, Philip St. J. Russell2, and Peter Hommelhoff1,21Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstrasse 1, 91058 Erlangen — 2Max Planck Institute for the Science of Light, Günther-Scharowsky-Str. 1, Erlangen, Germany

Ultrashort pulsed lasers with a duration of a single oscillation of the electric field are an ideal tool to investigate the sub-cycle dynamics of electrons under an intense field [1]. Recent observation of rescattering physics at a nanotip with the aid of optical field enhancement suggests that such a strong-field sub-cycle regime can be reached with much lower pulse energy (< 1 nJ) [2]. However, for such small pulse energy, difficulty in spectral broadening involving nonlinear optics hindered generation of sub two-cycle pulses. Here, we discuss how to broaden the spectrum of Ti:sapphire oscillator output by a customized solid core photonic crystal fiber and compress it back to its shortest pulse duration.

[1] M. T. Hassan et al., Rev. Sci. Instrum. 83, 111301 (2012).

[2] M. Krüger et al., Nature 475, 78 (2011).

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