Broadband wide angle lens implemented with dielectric metamaterials.
The Luneburg lens is a powerful imaging device, exhibiting aberration free focusing for parallel rays incident from any direction. However, its advantages are offset by a focal surface that is spherical and thus difficult to integrate with standard planar detector and emitter arrays. Using the recently developed technique of transformation optics, it is possible to transform the curved focal surface to a flat plane while maintaining the perfect focusing behavior of the Luneburg over a wide field of view. Here we apply these techniques to a lesser-known refractive Luneburg lens and implement the design with a metamaterial composed of a semi-crystalline distribution of holes drilled in a dielectric. In addition, we investigate the aberrations introduced by various approximations made in the implementation of the lens. The resulting design approach has improved mechanical strength with small aberrations and is ideally suited to implementation at infrared and visible wavelengths.
Duke Scholars
Altmetric Attention Stats
Dimensions Citation Stats
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Analytical Chemistry
- 4606 Distributed computing and systems software
- 4104 Environmental management
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 3103 Ecology
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing
- 0602 Ecology
- 0502 Environmental Science and Management
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Analytical Chemistry
- 4606 Distributed computing and systems software
- 4104 Environmental management
- 4009 Electronics, sensors and digital hardware
- 4008 Electrical engineering
- 3103 Ecology
- 0906 Electrical and Electronic Engineering
- 0805 Distributed Computing
- 0602 Ecology
- 0502 Environmental Science and Management