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Updated: May 23, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
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Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model

Published on: May 23, 2018

Vanadium dioxide based plasmonic modulators.

Luke A Sweatlock1, Kenneth Diest

  • 1Northrop Grumman Aerospace Systems, One Space Park, Redondo Beach, California 90278, USA. luke.sweatlock@ngc.com

Optics Express
|April 20, 2012
PubMed
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Tunable metal-insulator-metal waveguides using vanadium dioxide offer significant index modulation (>20%) and selective mode suppression. These plasmonic devices balance high index contrast with manageable optical loss for advanced photonic applications.

Area of Science:

  • Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Vanadium dioxide (VO2) exhibits distinct insulating and metallic phases with contrasting optical properties.
  • The large optical absorption in VO2's metallic phase enables modulators but complicates device design due to losses.

Purpose of the Study:

  • To numerically analyze actively tunable metal-insulator-metal waveguides using VO2 films.
  • To design plasmonic waveguides for index modulation and selective mode suppression.

Main Methods:

  • Numerical analysis of metal-insulator-metal waveguides.
  • Utilizing VO2 thin films as the active switching medium.
  • Designing waveguide structures to balance index contrast and optical loss.

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Last Updated: May 23, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
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Published on: May 23, 2018

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
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Main Results:

  • Demonstrated a plasmonic waveguide functioning as an index modulator with a refractive index change (Δn) exceeding 20% at 1,550 nm.
  • Configured a second device as a band-stop absorption modulator selectively suppressing TM1 and TM3 modes while minimally affecting TM0 and TM2 modes.

Conclusions:

  • Actively tunable waveguides based on VO2 offer significant potential for optical modulation and switching.
  • Careful device design can mitigate losses associated with VO2's metallic phase, enabling high-performance photonic devices.