Abstract

This work presents approaches to design andimplement three-dimensional (3D) graded index (GRIN) flat lenses consisting of concentric annular segments (in the radial direction). Generally, design of GRIN flat lenses calls for segments with very specific tailored permittivity which makes the realization of the lens challenging. To facilitate fabrication of the lens, each segment is replaced with a same-thick symmetric three-layered structure consisting of a layer of high permittivity material which is sandwiched between two low permittivity layers. Silica and silicon are utilized as low and high permittivity materials, respectively. Finally, by increasing the number of layers, a multi-layered GRIN flat lens with an enhanced focusing performance presented.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.