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Nonlinear optical interactions of topological modes of photonic nanostructures

Lan, Z; You, J; Panoiu, N-C; (2020) Nonlinear optical interactions of topological modes of photonic nanostructures. In: Proceedings of Active Photonic Platforms XII. (pp. 114610X). SPIE Green open access

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Abstract

Topological photonics aims to utilize topological photonic bands and corresponding edge modes to implement robust light manipulation. Importantly, topological photonics provide an ideal platform to study nonlinear interactions. In this talk, I will review some recent results regarding nonlinear interactions of one-way edge-modes in frequency mixing processes in topological photonic nanostructures. More specifically, I will discuss the band topology of 2D photonic crystals with hexagonal symmetry and demonstrate that SHG and THG can be implemented via one-way edge modes. Moreover, I will demonstrate that more exotic phenomena, such as slow-light enhancement of nonlinear interactions and harmonic generation upon interaction of backward-propagating edge modes can also be realized. Finally, FWM of topological plasmon modes of graphene plasmonic crystals and SHG upon interaction of valley-Hall topological modes of all-dielectric photonic crystals will be discussed.

Type: Proceedings paper
Title: Nonlinear optical interactions of topological modes of photonic nanostructures
Event: SPIE Optics + Photonics
Location: San Diego, California
Dates: 20 August 2020
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.2568438
Publisher version: https://doi.org/10.1117/12.2568438
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10125328
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