Photonic crystals for suppression of filamentation

Edvinas Aleksandravičius; Darius Gailevičius; Audrius Dubietis; Kęstutis Staliūnas

doi:10.1117/12.2621487

25 May 2022 Photonic crystals for suppression of filamentation

Edvinas Aleksandravičius, Darius Gailevičius, Audrius Dubietis, Kęstutis Staliūnas

Proceedings Volume 12143, Nonlinear Optics and its Applications 2022; 121430B (2022) https://doi.org/10.1117/12.2621487
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

In this work we show the prospect of using periodic refractive index modulation – photonic crystals – to control the spatial dispersion curvature in a way that could potentially counteract the Kerr effect, thus suppressing filamentation. Numerical simulations by beam propagation method indicate that fine control of the spatial dispersion can be achieved by tuning the photonic crystal geometry and projecting to the appropriate Bloch mode by chirping the longitudinal period. Fabrication of such photonic crystals poses some unique challenges due to the small feature size and large-scale requirement. Bessel beam writing is shown to be a valid method for the fabrication of such photonic crystals.

Conference Presentation

Citation Download Citation

Edvinas Aleksandravičius, Darius Gailevičius, Audrius Dubietis, and Kęstutis Staliūnas "Photonic crystals for suppression of filamentation", Proc. SPIE 12143, Nonlinear Optics and its Applications 2022, 121430B (25 May 2022); https://doi.org/10.1117/12.2621487

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