  We present a theoretical and numerical study of a dual metasurface superlens
dedicated to the near field optical imaging of submicron objects. Compared to
the previous studies of dual metasurface plasmonic superlenses, we suggest a
more adequate theoretical model of their operation. The new model allows us to
obtain twice better operational characteristics of the redisigned superlens.
For the first time, we describe the operation of such the superlens using full
wave numerical simulations, taking into account the interfaces of the host
medium slab and proving the nanoimaging for scattering objects instead of a
radiating source. We discuss and address both application and fabrication issue
for this superlens.
