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P: Fachverband Plasmaphysik

P 21: Laser Plasmas - Poster

P 21.10: Poster

Mittwoch, 7. März 2018, 16:15–18:15, Zelt West

Propagation of high-intensity laser light in two-dimensional transient plasma photonic crystals — •Camilla Willim and Götz Lehmann — Institut für Theoretische Physik I, Heinrich-Heine Universität, 40225 Düsseldorf

The ponderomotive force of intense laser pulses allows to volumetrically modulate the plasma density of underdense plasma on the scale of the laser-wavelength. These spatially structured plasmas can act as photonic structures and may have lifetimes between a few to tens of picoseconds [1]. The optical damage threshold of these plasmas supersedes solid-state materials by many orders of magnitudes, making them very attractive as novel photonic devices for ultra-short high-intensity laser pulses [1-3]. We study the propagation of ultra-short, high-intensity laser pulses in two-dimensionally structured plasmas by combining particle-in-cell simulations and semi-analytical models. The dispersion relations for s- and p-polarized light are obtained. Based on these results applications as Bragg-type mirrors, wave-plates and further possible future applications of plasma photonic crystals are identified.

[1] G. Lehmann and K.H. Spatschek, Phys. Rev. Lett. 116, 225002 (2016), [2] G. Lehmann and K.H. Spatschek, Phys. Plasmas 24, 056701 (2017), [3] P. Michel, L. Divol, D. Turnbull, and J.D. Moody, Phys. Rev. Lett. 113, 205001 (2014)