A simple design of flat hyperlens for lithography and imaging with half-pitch resolution down to 20 nm

Yi Xiong; Zhaowei Liu; Xiang Zhang
May 2009
Applied Physics Letters;5/18/2009, Vol. 94 Issue 20, p203108
Academic Journal
We propose that a hyperlens can be used for photolithography to generate deep subwavelength arbitrary patterns from diffraction-limited masks. Numerical simulation shows that half-pitch resolution down to 20 nm is possible from a mask with 280 nm period at working wavelength 375 nm. We also extend the hyperlens projection concept from cylindrical interfaces to arbitrary interfaces. An example of a flat interface hyperlens is numerically demonstrated for lithography purposes.


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