Title:
Planoconcave lens by negative refraction of stacked subwavelength hole arrays
Author(s):
M. Beruete, M. Navarro-Cía, M. Sorolla, I. Campillo
Source:
Vol./Issue/Date:
Vol.16, No. 13, 23.06.2008
Year:
2008
Page(s):
9677 - 9683
Keywords:
Abstract:
This work presents the design of a planoconcave parabolic
negative index metamaterial lens operating at millimeter wavelengths
fabricated by using stacked subwavelength hole arrays. A staircase
approximation to the ideal parabola profile has been done by removing step by step one lattice in each dimension of the transversal section. Theory predicts power concentration at the focal point of the parabola when the refractive index equals -1. Both simulation and measurement results exhibit an excellent agreement and an asymmetrical focus has been observed. The possibility to design similar planoconcave devices in the terahertz and optical wavelengths could be a reality in the near future.
Document:
Reference Id:
445
Back to References
Please note that this is a collection of external publications.
CST respects the copyrights of the respective owners and as such can not distribute said publications.
Details of copyright ownership is provided to the best of our knowledge. Please contact the given references for further information.