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arXiv · 2012.01695

Design of on-chip plasmonic modulator with vanadium-dioxide in hybrid orthogonal junctions on Silicon-on-Insulator

Gregory Tanyi·Miao Sun·Ranjith Unnithan
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Abstract

We present a plasmonic modulator based on hybrid orthogonal silver junctions using vanadium dioxide as the modulating material on the silicon on insulator. The modulator has an ultra-compact footprint of 1.8{\mu}m x 1{\mu}m with a 100nm x 100nm modulating section based on the orthogonal geometry. We take advantage of large change in the refractive index of vanadium dioxide during its phase transition to achieve a high modulation depth of 46.89dB/{\mu}m. We also provide a fabrication strategy for the development of this device. The device geometry has potential applications in the development of next generation high frequency photonic modulators for optical communications which require a nanometer scale footprint, large modulation depth and small insertion losses.

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Gregory Tanyi, Miao Sun, Ranjith Unnithan. 2020-12-03. Design of on-chip plasmonic modulator with vanadium-dioxide in hybrid orthogonal junctions on Silicon-on-Insulator. https://arxiv.org/abs/2012.01695

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