Suppression of filamentation by photonic crystals

被引：0

作者：

Aleksandravicius, Edvinas ^{[1
]}

Gailevicius, Darius ^{[1
]}

Dubietis, Audrius ^{[1
]}

Staliunas, Kestutis ^{[1
,2
,3
]}

机构：

[1] Vilnius Univ, Fac Phys, Laser Res Ctr, Sauletekio Ave 10, LT-10223 Vilnius, Lithuania

[2] ICREA, Passeig Lluis Companys 23, Barcelona 08010, Spain

[3] UPC, Dept Fis, Rambla St Nebridi 22, Terrassa 08222, Barcelona, Spain

来源：

NONLINEAR OPTICS AND ITS APPLICATIONS 2024 | 2024年 / 13004卷

关键词：

photonic crystals; direct laser writing; spatial dispersion; nonlinear optics; filamentation;

D O I：

10.1117/12.3022493

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

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.

引用

页数：3

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