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We study the effect of partial phase compensation on a free-space relay-assisted quantum-key distribution system. Our analytical results demonstrate that the relay-assisted system outperforms the direct transmission even with partial phase compensation.
We map out a transition from polycrystalline to amorphous photonic structures with decreasing short-range order. The photonic band gap decreases once the individual domains of ordered structure become too small for the gap formation.
We report measurement of the group index dispersion of the supermodes of a three channel array of strongly coupled silicon-on-insulator waveguides, and compare results with numerical simulations. We observe strong coupling-induced dispersion.
Optical analogues of Klein tunneling and Zitterbewegung for relativistic Dirac electrons are proposed for spatial beam propagation in binary waveguide superlattices.
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