Vector helical bloch modes in N-fold rotationally symmetric waveguiding structures: Spin and Azimuthal order

Russell PSJ, Chen Y, Roth P, Wong GKL (2019)

Publication Type: Conference contribution

Publication year: 2019

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Event location: Munich DE

ISBN: 9781728104690

DOI: 10.1109/CLEOE-EQEC.2019.8873264

Abstract

Many different techniques have been used to model the electromagnetic response of photonic crystal fibres (PCFs) and waveguide arrays. Here we introduce a new vectorial approach based on helical Bloch waves (hBWs) that appear in structures (such as many PCFs) that are N-fold rotationally symmetric (symmetry group Cn), i.e., they repeat perfectly in N sectors over 2π, when viewed in a cylindrical coordinate frame [1]. Helical Bloch waves can also carry optical angular momentum: a complex Bloch wave field propagates azimuthally around the axis of the structure, forming helical Bloch modes (hBMs) when a certain azimuthal resonance condition is satisfied.

Authors with CRIS profile

Philip St. John Russell Lehrstuhl für Experimentalphysik (Alfried Krupp von Bohlen und Halbach-Professur) Paul Roth Lehrstuhl für Experimentalphysik (Alfried Krupp von Bohlen und Halbach-Professur)

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Russell, P.S.J., Chen, Y., Roth, P., & Wong, G.K.L. (2019). Vector helical bloch modes in N-fold rotationally symmetric waveguiding structures: Spin and Azimuthal order. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. Munich, DE: Institute of Electrical and Electronics Engineers Inc..

MLA:

Russell, Philip St. John, et al. "Vector helical bloch modes in N-fold rotationally symmetric waveguiding structures: Spin and Azimuthal order." Proceedings of the 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich Institute of Electrical and Electronics Engineers Inc., 2019.

BibTeX: Download