Sub-wavelength Focusing in Air Using Semiconductor Based Hyperbolic Metamaterial for Infrared Imaging
Frontiers in Optics / Laser Science(2018)
摘要
We theoretically demonstrate sub-wavelength focusing in air using doped InAs/intrinsic InAs hyperbolic metamaterial (HMM). Sub-wavelength focusing in air is achieved in the near field at wavelength of 9.31µm with focusing distance of 1µm with resolution down to 0.13λ.
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