Presentation + Paper
20 June 2024 Suppression of filamentation by photonic crystals
Edvinas Aleksandravičius, Darius Gailevičius, Audrius Dubietis, Kęstutis Staliūnas
Author Affiliations +
Abstract
In this work we expand on the practical side of using periodic refractive index modulation – photonic crystals – to control the spatial dispersion curvature in a way that could suppress filamentation, by discussing some of the key issues arising in their fabrication. 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. Use of an annular beam to form the Bessel beam is shown to significantly reduce the errors in fabrication, allowing the formation of photonic crystals of sufficiently high quality for further experimental study.
Conference Presentation
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Edvinas Aleksandravičius, Darius Gailevičius, Audrius Dubietis, and Kęstutis Staliūnas "Suppression of filamentation by photonic crystals", Proc. SPIE 13004, Nonlinear Optics and its Applications 2024, 1300409 (20 June 2024); https://doi.org/10.1117/12.3022493
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KEYWORDS
Photonic crystals

Fabrication

Bessel beams

Axicons

Dispersion

Modulation

Beam propagation method

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