Photonic skin-depth engineering: universal spin-momentum locking of light (Conference Presentation)

Saman Jahani; Zubin Jacob

doi:10.1117/12.2256002

28 April 2017 Photonic skin-depth engineering: universal spin-momentum locking of light (Conference Presentation)

Saman Jahani, Zubin Jacob

Proceedings Volume 10113, High Contrast Metastructures VI; 1011310 (2017) https://doi.org/10.1117/12.2256002
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

Here, we surpass the diffraction limit of light by a new class of all-dielectric artificial materials that are lossless. This overcomes one of the fundamental challenges of light confinement in metamaterials and plasmonics: metallic loss. Our approach relies on controlling the optical momentum of evanescent waves as opposed to conventional photonic devices which manipulate propagating waves. This leads to a counterintuitive confinement strategy for electromagnetic waves across the entire spectrum. We introduce two distinct photonic design principles that can ideally lead to sub-diffraction light confinement without metal. They are i) relaxed total internal reflection and ii) photonic skin-depth engineering. We present initial experimental results on a CMOS compatible platform that prove the enhanced confinement of our all-dielectric metamaterial design.

Conference Presentation

Citation Download Citation

Saman Jahani and Zubin Jacob "Photonic skin-depth engineering: universal spin-momentum locking of light (Conference Presentation)", Proc. SPIE 10113, High Contrast Metastructures VI, 1011310 (28 April 2017); https://doi.org/10.1117/12.2256002

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