@article { ISI:000307538200027,
	title = {Giant birefringence in optical antenna arrays with widely tailorable optical anisotropy},
	journal = {PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA},
	volume = {109},
	number = {31},
	year = {2012},
	month = {JUL 31},
	pages = {12364-12368},
	publisher = {NATL ACAD SCIENCES},
	type = {Article},
	address = {2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA},
	abstract = {The manipulation of light by conventional optical components such as lenses, prisms, and waveplates involves engineering of the wavefront as it propagates through an optically thick medium. A unique class of flat optical components with high functionality can be designed by introducing abrupt phase shifts into the optical path, utilizing the resonant response of arrays of scatterers with deeply subwavelength thickness. As an application of this concept, we report a theoretical and experimental study of birefringent arrays of two-dimensional (V- and Y-shaped) optical antennas which support two orthogonal charge-oscillation modes and serve as broadband, anisotropic optical elements that can be used to locally tailor the amplitude, phase, and polarization of light. The degree of optical anisotropy can be designed by controlling the interference between the waves scattered by the antenna modes; in particular, we observe a striking effect in which the anisotropy disappears as a result of destructive interference. These properties are captured by a simple, physical model in which the antenna modes are treated as independent, orthogonally oriented harmonic oscillators.},
	keywords = {metasurfaces, plasmonics, resonance, scattering},
	issn = {0027-8424},
	doi = {10.1073/pnas.1210686109},
	author = {Mikhail A. Kats and Patrice Genevet and Aoust, Guillaume and Nanfang Yu and Blanchard, Romain and Francesco Aieta and Gaburro, Zeno and Federico Capasso}
}
