2 research outputs found
Negative-Index Metamaterials: Second-Harmonic Generation, Manley-Rowe Relations and Parametric Amplification
Second harmonic generation and optical parametric amplification in
negative-index metamaterials (NIMs) are studied. The opposite directions of the
wave vector and the Poynting vector in NIMs results in a "backward"
phase-matching condition, causing significant changes in the Manley-Rowe
relations and spatial distributions of the coupled field intensities. It is
shown that absorption in NIMs can be compensated by backward optical parametric
amplification. The possibility of distributed-feedback parametric oscillation
with no cavity has been demonstrated. The feasibility of the generation of
entangled pairs of left- and right-handed counter-propagating photons is
discussed.Comment: 7 pages, 6 figure
Resonant nonlinear optics of backward waves in negative-index metamaterials
The extraordinary properties of resonant four-wave mixing of backward waves
in doped negative-index materials are investigated. The feasibility of
independent engineering of negative refractive index and nonlinear optical
response as well as quantum control of the nonlinear propagation process in
such composites is shown due to the coherent energy transfer from the control
to the signal field. Laser-induced transparency, quantum switching,
frequency-tunable narrow-band filtering, amplification, and realizing a
miniature mirrorless optical parametric generator of the entangled backward and
ordinary waves are among the possible applications of the investigated
processes.Comment: 10 pages, 9 figure