Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 24: Poster: Quantum Optics and Photonics I

Q 24.23: Poster

Tuesday, March 12, 2019, 16:30–18:30, S Fobau Physik

Compression of supercontinuum pulses using different chirped mirror technologies — Han-gyeol Lee, •Sudheendran Vasudevan, Alexander Kastner, Hendrike Braun, Arne Senftleben, and Thomas Baumert — Universität Kassel, Institut für Physik und CINSaT, D-34132 Kassel, Germany

White light continua spanning a broad spectral region generated in a noble gas filled hollow-core fiber are a prerequisite for the generation of few-cycle light pulses. The white light pulses are interesting due to their broad bandwidth paving the way to excite more intermediate resonances in atomic or molecular systems, while in the few cycle limit, ionization out of a nearly frozen nuclear configuration can be achieved.
In this contribution, we demonstrate our recent approaches to compress a white light continuum spanning the 450-1000 nm spectral region down to the few-cycle limit using different chirped mirror technologies. One is based on double angle technology [1], while the other one is based on a variable angle of incidence [2].
The light pulses are characterized in the temporal domain by using a home-built transient grating frequency resolved optical gating (TG-FROG) [3]. The χ⁽³⁾ process-based TG-FROG makes use of intrinsic phase-matching to characterize the white light continuum.
V. Pervak et al. Opt. Express 17, 7943, (2009)
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R. Trebino et al., Rev. Sci. Instrum. 68 (9), (1997)