Berlin 2014 – scientific programme
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P: Fachverband Plasmaphysik
P 24: Laser Plasmas I
P 24.2: Talk
Thursday, March 20, 2014, 14:15–14:30, SPA HS202
Few-cycle optical probe-pulse for investigation of relativistic laser-plasma interactions — •Matthew B. Schwab1, Alexander Sävert1, Oliver Jäckel1,2, Jens Polz1, Michael Schnell1, Thorsten Rinck1, Laszlo Veisz3, Max Möller1,2, Peter Hansinger1, Gerhard G. Paulus1,2, and Malte C. Kaluza1,2 — 1Insitut für Optik und Quantenelektronik, Jena, Germany — 2Helmholtz-Institut Jena, Jena, Germany — 3Max-Planck-Institut für Quantenoptik, Garching, Germany
The motivation, development, and implementation of a few-cycle optical probe-pulse for the investigation of laser-plasma interactions driven by a Ti:sapphire, 30 Terawatt (TW) laser system will be described*.
The probe was seeded by a fraction of the driving laser’s energy and underwent spectral broadening via self-phase modulation in a hollow core fiber filled with a noble gas. Chirped mirrors temporally compressed the broadened probe to a few optical cycles. Using this probe, shadowgraphic images of the laser-driven plasma wave created in relativistic electron acceleration experiments were recorded with few-fs temporal resolution. The images’ temporal resolution proved to be independent of spectral filtering of the probe-beam performed after it had propagated through the laser-plasma interaction.
*Appl. Phys. Lett. 103, 191118 (2013)