Compensating losses in negative-index metamaterials by optical parametric amplification
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Alexander K Popov1, Vladimir M Shalaev
1Department of Physics and Astronomy, University of Wisconsin-Stevens Point 54481-3897, USA. apopov@uwsp.edu
Optics Letters
|June 24, 2006
Abstract:
Optical parametric amplification controlled by the auxiliary electromagnetic field enables transparency, amplification, and oscillation with no cavity in strongly absorbing negative-index metamaterials. The opposite directions of the wave vector and the Poynting vector in such materials result in extraordinary optical properties, including "backward" phase matching and the generation of entangled pairs of left- and right-handed counterpropagating photons.
