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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Broadband large-angle self-collimation in two-dimensional silicon photonic crystal
Lin Gan1, Fei Qin, Zhi-Yuan Li
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
Optics Letters
|June 29, 2012
Summary
We demonstrate a silicon photonic crystal enabling self-collimation of light without diffraction. This broadband, large-angle effect works across a wide range of infrared wavelengths.
Area of Science:
- Photonics
- Materials Science
- Optics
Background:
- Photonic crystals offer unique light manipulation properties.
- Self-collimation is a phenomenon where light propagates without diffraction.
Purpose of the Study:
- To design and fabricate a 2D silicon photonic crystal structure.
- To achieve broadband, large-angle self-collimation of light.
Main Methods:
- Theoretical modeling of light propagation in photonic crystals.
- Experimental fabrication and characterization of the silicon photonic crystal structure.
- Observation of light propagation without diffraction.
Main Results:
- The designed silicon photonic crystal supports self-collimation.
- Large incident angles and broad wavelength ranges were achieved.
- Diffraction-free light propagation was experimentally verified in the infrared spectrum.
Conclusions:
- The developed 2D silicon photonic crystal enables efficient broadband, large-angle self-collimation.
- This technology has potential applications in integrated optics and optical communication.
