Energy and information flow in superlensing

Details Energy and information flow in superlensing Energy and information flow in superlensing

2009-03-04

arxiv.org/abs/0903.0773v1

Physics

Optics

Scientific paper

10.1103/PhysRevA.79.033846

In the superlens problem, the presence of the reflected wave plays a critical role in the energy and information transfer from the object to recording device: both incident and reflected evanescent waves are required to insure nonzero energy/information flux from the object to the recorder. Therefore an optimization is required between the image quality (characterized by a transfer function) and information transfer rate (characterized by the energy/information flux). It is shown that the introduction of the recording device may lead to the deterioration in the image quality as compared to the ideal case when no recording device is present. The decline in the image quality is due to the generation of phase-shifted reflected evanescent wave between the lens and the recorder. It is also shown that the magnitude of the energy flux depends on the amount of dissipation in the lens and the recorder in a non-monotonous way.

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