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Related Experiment Video

Updated: Jun 23, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
13:02

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

Published on: February 25, 2017

Two-dimensional photonic crystal color filter development.

Eun-Hyoung Cho1, Hae-Sung Kim, Byoung-Ho Cheong

  • 1Material & Device Center, Samsung Advanced Institute of Technology, Giheung-Gu, Yongin-City, Gyeonggi-Do 446-712, Korea.

Optics Express
|May 13, 2009
PubMed
Summary
This summary is machine-generated.

New reflective color filters utilize two-dimensional photonic crystals for high reflectance. These advanced filters, made with nanoimprint lithography, show reduced incident angle dependence, improving performance over older designs.

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Last Updated: Jun 23, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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Published on: February 25, 2017

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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

Area of Science:

  • Materials Science
  • Optics
  • Nanotechnology

Background:

  • Photonic crystals offer unique optical properties.
  • Sub-wavelength gratings are key components in advanced optical filters.
  • Existing color filters can have limitations in angular dependence and reflectance.

Purpose of the Study:

  • To propose and construct novel reflective color filters using 2D photonic crystals.
  • To investigate the relationship between silicon pattern crystallinity and filter performance.
  • To evaluate the angular dependence and reflectance of the proposed filters.

Main Methods:

  • Fabrication of 2D photonic crystals using nanoimprint lithography and low-temperature PECVD.
  • Crystallization of amorphous silicon patterns via multi-shot excimer laser annealing.
  • Analysis of color filter reflectance and its correlation with silicon crystallinity.

Main Results:

  • Successfully constructed reflective color filters based on 2D photonic crystals.
  • Demonstrated a strong link between silicon pattern crystallinity and filter reflectance.
  • Achieved high reflectance and reduced incident angle dependence compared to 1D photonic crystal filters.

Conclusions:

  • The proposed 2D photonic crystal color filters offer superior optical performance.
  • Low-cost fabrication methods enable practical application of these advanced filters.
  • Crystallinity control is crucial for optimizing the performance of silicon-based photonic devices.