Extremely Nonlinear Optics Using Shaped Pulses Spectrally Broadened in an Argon- or Sulfur Hexafluoride-Filled Hollow-Core Fiber

Applied Sciences

Andreas Hoffmann¹  Michael Zürch¹  Christian Spielmann¹ 

[1] Institute of Optics and Quantum Electronics, Abbe Center of Photonics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany; E-Mails:

关键词: sulfur hexafluoride;    nonlinear fiber optics;    ultrashort laser pulses;    pulse-shaping;    atomic and molecular physics;    high-harmonic generation;   

DOI  :  10.3390/app5041310

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.