Dielectric resonances of hexagonal boron nitride nanodisks

Milad Nourbakhsh; Haonan Ling; Vincent R. Whiteside; Artur Davoyan; Joseph G. Tischler

doi:10.1117/12.2692575

13 March 2024 Dielectric resonances of hexagonal boron nitride nanodisks

Milad Nourbakhsh, Haonan Ling, Vincent R. Whiteside, Artur Davoyan, Joseph G. Tischler

Proceedings Volume PC12888, 2D Photonic Materials and Devices VII; PC128880E (2024) https://doi.org/10.1117/12.2692575
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Electromagnetic (EM) Mie resonances in high-index nanomaterials have garnered significant interest for their potential to confine EM fields and therefore enhance optical effects. Phonon polaritons in boron nitride (hBN) nanostructures (NNs) have been heavily studied as low-losses hyperbolic metamaterials in the midinfrared within the Reststrahlen band. In this work, we show that hBN NNs can also be used as extremely high positive dielectric material near the transversal optical mode, making them attractive candidates for dielectric resonators. This study investigates the infrared Mie resonances of hBN NNs of varying sizes through numerical and experimental analyses. Notably, a strong magnetic dipole resonance is observed, which energy and strength depends on the size and geometry of the hBN NN, as well as the substrate properties. Harnessing Mie resonances offers a path for manipulating light confinement for applications such as lasers, flat optics, imaging, and chemical sensing.

Conference Presentation

Citation Download Citation

Milad Nourbakhsh, Haonan Ling, Vincent R. Whiteside, Artur Davoyan, and Joseph G. Tischler "Dielectric resonances of hexagonal boron nitride nanodisks", Proc. SPIE PC12888, 2D Photonic Materials and Devices VII, PC128880E (13 March 2024); https://doi.org/10.1117/12.2692575

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