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Related Experiment Video

Updated: Nov 17, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

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Published on: March 19, 2016

Nanoscale All-Solid-State Plasmochromic Waveguide Nonresonant Modulator.

Eric Hopmann¹, Brett N Carnio¹, Curtis J Firby¹

¹Ultrafast Optics and Nanophotonics Laboratory, Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2 V4, Canada.

|February 18, 2021

Summary

This summary is machine-generated.

This study introduces a plasmochromic waveguide (PCWG) for active plasmonic devices. The novel design achieves significant light modulation with fast switching times using tungsten oxide and lithium niobate layers.

Keywords:

Active Plasmonics Electrochromics Light Modulation Plasmochromics Plasmonic Waveguides

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Last Updated: Nov 17, 2025

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Area of Science:

Nanophotonics
Materials Science
Optoelectronics

Background:

Plasmochromics, the interplay of plasmons and electrochromic materials, enable active plasmonic devices.
Active manipulation of plasmons is achieved by integrating electrochromic materials within the plasmonic dielectric environment.

Purpose of the Study:

To demonstrate light modulation in a nanoplasmonic waveguide using a solid-state plasmochromic waveguide (PCWG).
To utilize inorganic WO3 and ion-conducting LiNbO3 as core materials for the PCWG.

Main Methods:

Fabrication of a PCWG utilizing WO3 and LiNbO3 layers for light modulation.
Exploiting plasmonic loss at the WO3/Au interface, where Li+ ions intercalate into the WO3 layer.
Decoupling ion diffusion and plasmon propagation through strategic PCWG design.

Main Results:

Achieved enhanced modulation depth and rapid electrochromic (EC) switching times.
Demonstrated modulation depths of 20 dB and 38 dB for 10 μm and 20 μm devices, respectively, at a 2.5 V bias.
Validated the effectiveness of the PCWG for active plasmonic light modulation.

Conclusions:

The developed PCWG offers a promising platform for active plasmonic devices.
The design enables efficient light modulation with high performance characteristics.
This work advances the field of plasmochromics and nanoplasmonic waveguide applications.