Spontaneous emission enhancement of quantum emitter using resonant Kerker condition in high refractive index metasurfaces

Megha Khokhar; Faraz Ahmed Inam; Rajesh V. Nair

doi:10.1117/12.2603269

1 August 2021 Spontaneous emission enhancement of quantum emitter using resonant Kerker condition in high refractive index metasurfaces

Megha Khokhar, Faraz Ahmed Inam, Rajesh V. Nair

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Proceedings Volume 11795, Metamaterials, Metadevices, and Metasystems 2021; 117952O (2021) https://doi.org/10.1117/12.2603269
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

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Abstract

The unidirectional scattering of high index metasurfaces is explored at Kerker condition using numerical simulations. We obtained the generalized first Kerker condition for an array of Silicon disks on a dielectric substrate that shows complete forward scattering using the multipole expansion method. We observe a significant Purcell enhancement for the quantum emitter embedded in the disk with emission wavelength overlapping with Kerker condition with a directional emission pattern. We also observed that this enhancement largely depends on the emitter's location and can be further engineered with the refractive index of disks.

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Megha Khokhar, Faraz Ahmed Inam, and Rajesh V. Nair "Spontaneous emission enhancement of quantum emitter using resonant Kerker condition in high refractive index metasurfaces", Proc. SPIE 11795, Metamaterials, Metadevices, and Metasystems 2021, 117952O (1 August 2021); https://doi.org/10.1117/12.2603269

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