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Proceedings Paper

Photonic crystal based spatial filters: working principle and applications in micro-optical devices
Author(s): Vytautas Purlys; Darius Gailevičius; Lina Maigyte; Martynas Peckus; Roaldas Gadonas; Kestutis Staliunas
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Paper Abstract

Here we review and discuss the recent advances of the spatial filtering using the Photonic Crystals (PhCs) in different propagation regimes and for different geometries. We numerically and experimentally explore the spatial filtering in crystals with different symmetries, including axisymmetric crystals; we discuss the role of chirping, i.e., the dependence of the longitudinal period along the structure. Additionally, we present a super-collimation effect, which we observed only in axisymmetric PhCs, which leads to a significant enhancement of axial beam components by depleting the higher angular frequency components. Finally, we discuss several implementations of such filters for intracavity spatial filtering.

Paper Details

Date Published: 18 April 2016
PDF: 7 pages
Proc. SPIE 9885, Photonic Crystal Materials and Devices XII, 988518 (18 April 2016); doi: 10.1117/12.2225941
Show Author Affiliations
Vytautas Purlys, Vilnius Univ. (Lithuania)
Darius Gailevičius, Vilnius Univ. (Lithuania)
Lina Maigyte, Univ. Politècnica de Catalunya (Spain)
Martynas Peckus, Vilnius Univ. (Lithuania)
Roaldas Gadonas, Vilnius Univ. (Lithuania)
Kestutis Staliunas, Univ. Politècnica de Catalunya (Spain)
Institucio Catalana de Recerca i Estudis Avancats (Spain)

Published in SPIE Proceedings Vol. 9885:
Photonic Crystal Materials and Devices XII
Dario Gerace; Gabriel Lozano; Christelle Monat; Sergei G. Romanov, Editor(s)

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