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Luneburg lens in silicon photonics
Andrea Di Falco1, Susanne C Kehr, Ulf Leonhardt
1School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, UK.
Optics Express
|March 30, 2011
Summary
Researchers fabricated and tested a Luneburg lens in silicon photonics, creating an aberration-free optical component. This breakthrough enables compact Fourier optics on chips and versatile perfect imaging devices for silicon platforms.
Area of Science:
- Photonics
- Optics
- Materials Science
Background:
- Luneburg lenses offer aberration-free focusing, ideal for optical systems.
- Silicon photonics enables miniaturized and integrated optical devices.
Purpose of the Study:
- To fabricate and test a Luneburg lens using silicon photonics.
- To explore the potential of integrated Luneburg lenses for on-chip Fourier optics.
- To demonstrate a versatile fabrication technique for perfect imaging devices on silicon.
Main Methods:
- Fabrication of a Luneburg lens utilizing silicon photonics technology.
- Experimental testing and characterization of the fabricated Luneburg lens's optical performance.
Main Results:
- Successful fabrication and testing of a Luneburg lens in silicon photonics.
- Demonstration of the lens's ability to focus light from all directions equally well.
- Validation of the fabrication technique's versatility for silicon platforms.
Conclusions:
- Integrated Luneburg lenses are promising building blocks for compact Fourier optics on chips.
- The developed fabrication technique is suitable for creating perfect imaging devices on silicon platforms.
- This work advances the field of integrated photonics and optical device fabrication.

