Anapole nanolasers for mode-locking and ultrafast pulse generation
KAUST DepartmentApplied Mathematics and Computational Science Program
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
PRIMALIGHT Research Group
KAUST Grant NumberOSR-2016-CRG5-2995
Online Publication Date2017-05-31
Print Publication Date2017-08
Permanent link to this recordhttp://hdl.handle.net/10754/624031
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AbstractNanophotonics 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.
CitationTotero Gongora JS, Miroshnichenko AE, Kivshar YS, Fratalocchi A (2017) Anapole nanolasers for mode-locking and ultrafast pulse generation. Nature Communications 8: 15535. Available: http://dx.doi.org/10.1038/ncomms15535.
SponsorsA.F. acknowledges funding support from KAUST (Award No. OSR-2016-CRG5-2995). For the computer time, we have used the resources of the KAUST Supercomputing Laboratory and the Redragon cluster of the PRIMALIGHT group.
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