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Related Experiment Video

Updated: May 17, 2026

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

Photonic crystal light-emitting sources.

Aurélien David¹, Henri Benisty, Claude Weisbuch

¹Soraa Inc., Fremont, CA, USA. aurelien.david@polytechnique.org

Reports on Progress in Physics. Physical Society (Great Britain)

|October 27, 2012

Summary

Photonic crystals (PhCs) offer control over light emission for practical sources. Research explores various PhC designs and material constraints for enhanced light-emitting applications.

Area of Science:

Photonics
Materials Science
Optoelectronics

Background:

Photonic crystals (PhC) enable control over spontaneous emission (SpE) in terms of direction and rate.
Real-world light-emitting structures face numerous material and design constraints.

Purpose of the Study:

To review and discuss the application of photonic crystals for practical light-emitting sources.
To analyze various PhC-based approaches, considering real-world constraints and material limitations.

Main Methods:

Discussion of mechanisms involving modified photonic bands and band gaps for light sources.
In-depth analysis of planar emitters, grating diffraction for enhanced light extraction, and III-V/III-nitride semiconductor applications.
Review of advanced structures, etched active structures, and the Purcell effect, including plasmonic implementations.

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Main Results:

Various PhC approaches demonstrate potential for controlling SpE in light sources.
Grating diffraction enhances light extraction, with applications in III-V and III-nitride semiconductors.
The Purcell effect shows promise for enhancing SpE rates, but is effective only for specific sources.

Conclusions:

Successful implementation of PhCs for light sources requires a careful balance of physics and material parameters.
Understanding physical limitations, including comparison with random surface roughening, is crucial.
Advanced designs and consideration of plasmonic effects offer further avenues for SpE enhancement.