Anapole nanolasers for mode-locking and ultrafast pulse generation

Juan S. Totero Gongora, Andrey E. Miroshnichenko, Yuri S. Kivshar () and Andrea Fratalocchi ()
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Juan S. Totero Gongora: PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology
Andrey E. Miroshnichenko: Nonlinear Physics Centre, Research School for Physics and Engineering, Australian National University
Yuri S. Kivshar: Nonlinear Physics Centre, Research School for Physics and Engineering, Australian National University
Andrea Fratalocchi: PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: 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.

Date: 2017
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DOI: 10.1038/ncomms15535

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