All-optical switching in silicon photonic waveguides with an epsilon-near-zero resonant cavity [invited]

Andres D. Neira, Gregory A. Wurtz*, Anatoly V. Zayats

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
270 Downloads (Pure)

Abstract

Strong nonlinearity of plasmonic metamaterials can be designed near their effective plasma frequency in the epsilon-near-zero (ENZ) regime. We explore the realization of an all-optical modulator based on the Au nonlinearity using an ENZ cavity formed by a few Au nanorods inside a Si photonic waveguide. The resulting modulator has robust performance with a modulation depth of about 30 dB/μm and loss less than 0.8 dB for switching energies below 600 fJ. The modulator provides a double advantage of high mode transmission and strong nonlinearity enhancement in the few-nanorod-based design.

Original languageEnglish
Pages (from-to)B1-B5
JournalPhotonics Research
Volume6
Issue number5
DOIs
Publication statusPublished - 1 May 2018

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