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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 9 — May. 5, 2014
  • pp: 10987–10994

Ultrafast all-optical modulation with hyperbolic metamaterial integrated in Si photonic circuitry

Andres D. Neira, Gregory A. Wurtz, Pavel Ginzburg, and Anatoly V. Zayats  »View Author Affiliations

Optics Express, Vol. 22, Issue 9, pp. 10987-10994 (2014)

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The integration of optical metamaterials within silicon integrated photonic circuitry bears significantly potential in the design of low-power, nanoscale footprint, all-optical functionalities. We propose a novel concept and provide detailed analysis of an on-chip ultrafast all-optical modulator based on an hyperbolic metamaterial integrated in a silicon waveguide. The anisotropic metamaterial based on gold nanorods is placed on top of the silicon waveguide to form a modulator with a 300x440x600 nm3 footprint. For the operating wavelength of 1.5 μm, the optimized geometry of the device has insertion loss of about 5 dB and a modulation depth of 35% with a sub-ps switching rate. The switching energy estimated from nonlinear transient dynamic numerical simulations is 3.7 pJ/bit when the transmission is controlled optically at a wavelength of 532 nm, resonant with the transverse plasmonic mode of the metamaterial. The switching mechanism is based on the control of the hybridization of eigenmodes in the metamaterial slab and the Si waveguide.

© 2014 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.4310) Integrated optics : Nonlinear
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(160.3918) Materials : Metamaterials
(130.4815) Integrated optics : Optical switching devices
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Integrated Optics

Original Manuscript: February 17, 2014
Revised Manuscript: March 20, 2014
Manuscript Accepted: March 24, 2014
Published: April 30, 2014

Andres D. Neira, Gregory A. Wurtz, Pavel Ginzburg, and Anatoly V. Zayats, "Ultrafast all-optical modulation with hyperbolic metamaterial integrated in Si photonic circuitry," Opt. Express 22, 10987-10994 (2014)

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