We study the generation of surface plasmon-polariton pairs with a gallium arsenide nanoparticle located at the silver-air interface. We demonstrate theoretically that N00N-states of surface plasmon-polariton pairs with N=2 can be obtained for certain excitation geometries. The effect can be physically interpreted as the result of a quantum interference between pairs of induced sources, each emitting either signal or idler plasmons.

International Conference Laser Optics (ICLO)Jun 20, 20220 citations

High visibility on-chip quantum interference of single surface plasmons

Yong-Jing Cai, Ming Li, Xi‐Feng Ren +6 more

In this work, the on-chip quantum interference of two single surface plasmons was achieved and the high visibility (greater than 90%) proves the bosonic nature of single plasmons. The effect of intrinsic losses in plasmonic waveguides is also discussed.

Jan 1, 20152 citations