Bulk photonic metamaterial with hyperbolic dispersion

Noginov, M. A.; Barnakov, Yu. A.; Zhu, G.; Tumkur, T.; Li, H.; Narimanov, E. E.
April 2009
Applied Physics Letters;4/13/2009, Vol. 94 Issue 15, p151105
Academic Journal
We have demonstrated the thickest bulk photonic metamaterial reported in the literature based on an Ag-filled alumina membrane. The material is highly anisotropic with hyperbolic dispersion at λ>0.84 μm. The refraction of light in the direction expected of isotropic media with n<1 has been experimentally demonstrated at λ=632.8 nm. This makes the material potentially suitable for a variety of applications ranging from subdiffraction imaging to optical cloaking.


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