Imaging properties of a metamaterial superlens
Proceedings of the 2nd IEEE Conference on Nanotechnology - Trang 225-228
Tóm tắt
The subwavelength imaging quality of a metamaterial superlens is studied numerically in the wavevector domain. Examples of image compression and magnification are given and resolution limits are discussed. A minimal resolution of /spl lambda//6 is obtained using a 36 nm silver film at 364 nm wavelength. The simulation also demonstrates the power flux is no longer a good measure to determine the focal plane of a superlens due the elevated field strength at the exit side of the metamaterial slab.
Từ khóa
#Metamaterials #Slabs #Optical imaging #Optical refraction #Permittivity #Permeability #Optical propagation #Focusing #Lenses #Image resolutionTài liệu tham khảo
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