Anapole nanolasers for mode-locking and ultrafast pulse generation

Totero Gongora, Juan S, Miroshnichenko, Andrey E, Kivshar, Yuri S and Fratalocchi, Andrea (2017) Anapole nanolasers for mode-locking and ultrafast pulse generation. Nature Communications, 8 (15535). pp. 1-9. ISSN 2041-1723

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Abstract

Nanophotonics is a rapidly developing field of research with many suggestions for a design of nanoantennas, sensors and miniature metadevices. Despite many proposals for passive nanophotonic devices, the efficient coupling of light to nanoscale optical structures remains a major challenge. In this article, we propose a nanoscale laser based on a tightly confined anapole mode. By harnessing the non-radiating nature of the anapole state, we show how to engineer nanolasers based on InGaAs nanodisks as on-chip sources with unique optical properties. Leveraging on the near-field character of anapole modes, we demonstrate a spontaneously polarized nanolaser able to couple light into waveguide channels with four orders of magnitude intensity than classical nanolasers, as well as the generation of ultrafast (of 100 fs) pulses via spontaneous mode locking of several anapoles. Anapole nanolasers offer an attractive platform for monolithically integrated, silicon photonics sources for advanced and efficient nanoscale circuitry.

Item Type: Article
Keywords: Lasers, LEDs and light sources, Nanophotonics and plasmonics, Nanoscale devices, Nonlinear optics
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics > QC0350 Optics. Light
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Depositing User: Juan Sebastian Totero Gongora
Date Deposited: 15 Nov 2017 09:54
Last Modified: 02 Jul 2018 14:22
URI: http://sro.sussex.ac.uk/id/eprint/69653

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