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Optical entropy bounds for metal nanoparticles immersed in nonlinear opticalmedia and for nonlinear dielectric microdroplets on metal surfaces arecalculated near the frequency of the surface plasmon resonance. Similar to theBekenstein-Hawking result for the black hole entropy, the entropy bounds innonlinear quantum nanooptics may be expressed as the ratios of the dropletperimeter (nanoparticle area) to the effective Planck length (effective Plancklength squared).Comment: 4 pages, 1 figur

NONLINEAR NANO-OPTICS OF SURFACE PLASMONS AT THE "PLANCK SCALE"