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Related Experiment Video

Updated: Oct 12, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Side edge emission from a waveguide substrate.

Yoichi Ogata, Mykyta Kolchiba

|November 22, 2021

Summary

We fabricated titanium dioxide nanogratings on silicon dioxide substrates, achieving efficient two-way optical signal transmission. This technology is promising for developing advanced optical interconnectors.

Area of Science:

Materials Science
Nanotechnology
Optoelectronics

Background:

Nanostructured materials offer unique optical properties.
Efficient optical interconnects are crucial for modern electronics.
Titanium dioxide nanostructures are explored for photonic applications.

Purpose of the Study:

To fabricate embedded titanium dioxide nanogratings.
To analyze the optical signal behavior of these nanostructures.
To explore their potential as optical interconnectors.

Main Methods:

Electron beam lithography (EBL) for nanostructure fabrication.
Reactive ion etching (RIE) for precise structure definition.
Scanning optical microscopy (SEM) for surface morphology analysis.

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Last Updated: Oct 12, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

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Optical signal analysis under specific polarization and incident angles.

Main Results:

Fabrication of embedded titanium dioxide nanogratings with slanted cross-sections.
Observation of +1st and -2nd diffraction orders with high efficiencies (23% and 19%).
Demonstration of waveguided diffraction beams via total internal reflection (TIR).
Emission of guided beams from substrate edges, enabling two-way transmission.

Conclusions:

The fabricated nanogratings exhibit efficient diffraction and waveguiding properties.
The study demonstrates a potential pathway for highly efficient two-way waveguide optical interconnectors.
This research contributes to the development of advanced photonic devices.