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Related Experiment Video

Updated: Jun 26, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Nanowire-based tunable photonic crystals.

R Rehammar1, J M Kinaret

  • 1Department of Applied Physics Chalmers University of Technology, SE-41296 Gothenburg, Sweden. robert.rehammar@chalmers.se

Optics Express
|December 24, 2008
PubMed
Summary

Researchers developed tunable photonic crystals using electrostatically actuated nanowires. This breakthrough allows dynamic control over optical properties, enabling significant changes in light transmission for advanced optical devices.

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Diffraction from carbon nanofiber arrays.

Optics letters·2012
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A carbon nanotube gated carbon nanotube transistor with 5 ps gate delay.

Nanotechnology·2011
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Optical properties of carbon nanofiber photonic crystals.

Nanotechnology·2010
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Area of Science:

  • Materials Science
  • Optics
  • Nanotechnology

Background:

  • Photonic crystals offer unique optical properties but typically have fixed characteristics.
  • Tuning optical properties, especially at visible frequencies, remains a significant challenge for conventional photonic crystals.

Purpose of the Study:

  • To theoretically investigate the use of nanowires as building blocks for tunable two-dimensional photonic crystals.
  • To explore electrostatic actuation for dynamically modifying photonic crystal structures and optical responses.

Main Methods:

  • Utilized a finite-difference time-domain (FDTD) method for modeling photonic crystals with adaptable bases.
  • Simulated tunable photonic crystals composed of flexible nanowires arranged in a periodic pattern.

Main Results:

  • Demonstrated electrostatic tuning of optical transmission from over 90% to less than 10% in a few-row nanowire photonic crystal.
  • Confirmed tunability in realistic three-dimensional experimental geometries.
  • Achieved microsecond-range response times for tunable carbon-nanofibre-based photonic crystals.

Conclusions:

  • Electrostatically actuated nanowire photonic crystals offer a viable route to tunable optical devices.
  • The proposed design maintains tunability in practical 3D configurations.
  • Microsecond-scale response times are achievable, paving the way for high-speed optical applications.

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
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Last Updated: Jun 26, 2026

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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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