Wave front engineering from an array of thin aperture antennas
Year: 2012
Type: article
Abstract: We propose an ultra-thin metamaterial constructed by an ensemble of the same type of anisotropic aperture antennas with phase discontinuity for wave front manipulation across the metamaterial. A circularly polarized light is completely converted to the cross-polarized light which can either be bent or focused tightly near the diffraction limit. It depends on a precise control of the optical-axis profile of the antennas on a subwavelength scale, in which the rotation angle of the optical axis has a simple linear relationship to the phase discontinuity. Such an approach enables effective wave front engineering within a subwavelength scale.
Source: Optics Express
DOI: 10.1364/oe.20.015882
Authors: Ming Kang, Tianhua Feng, Hui-Tian Wang, Jensen Li
Institutions: City University of Hong Kong, Nankai University
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W1999744982