Broadband wide angle lens implemented with dielectric metamaterials

19Citations
Citations of this article
27Readers
Mendeley users who have this article in their library.

Abstract

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. © 2011 by the authors; licensee MDPI, Basel, Switzerland.

Cite

CITATION STYLE

APA

Hunt, J., Kundtz, N., Landy, N., Nguyen, V., Perram, T., Starr, A., & Smith, D. R. (2011). Broadband wide angle lens implemented with dielectric metamaterials. Sensors, 11(8), 7982–7991. https://doi.org/10.3390/s110807982

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free