TY - JOUR
T1 - Inhomogenous dielectric metamaterials with space-variant polarizability
AU - Levy, Uriel
AU - Abashin, Maxim
AU - Ikeda, Kazuhiro
AU - Krishnamoorthy, Ashok
AU - Cunningham, John
AU - Fainman, Yeshaiahu
PY - 2007/6/13
Y1 - 2007/6/13
N2 - We experimentally demonstrate for the first time the focusing of optical beams within an inhomogeneous dielectric metamaterial with space-variant polarizability, implemented by etching subwavelength structures into a Silicon slab. Light focusing is obtained by creating an artificial slab material with graded refractive index profile. The local refractive index within the slab is modulated by controlling the duty cycle of the subwavelength structures. The demonstrated metamaterial based component can be integrated with various other building blocks towards the realization of devices and systems in free space optics on a chip configuration.
AB - We experimentally demonstrate for the first time the focusing of optical beams within an inhomogeneous dielectric metamaterial with space-variant polarizability, implemented by etching subwavelength structures into a Silicon slab. Light focusing is obtained by creating an artificial slab material with graded refractive index profile. The local refractive index within the slab is modulated by controlling the duty cycle of the subwavelength structures. The demonstrated metamaterial based component can be integrated with various other building blocks towards the realization of devices and systems in free space optics on a chip configuration.
UR - http://www.scopus.com/inward/record.url?scp=34547323579&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.98.243901
DO - 10.1103/PhysRevLett.98.243901
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AN - SCOPUS:34547323579
SN - 0031-9007
VL - 98
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 243901
ER -