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4 papers · 2 filters
Nonlocal response in plasmonic waveguiding with extreme light confinement
G. Toscano, S. Raza, W. Yan +6
We present a novel wave equation for linearized plasmonic response, obtained by combining the coupled real-space differential equations for the electric field and current density.…
Nanoplasmonics beyond Ohm's law
N. A. Mortensen, G. Toscano, S. Raza +5
In tiny metallic nanostructures, quantum confinement and nonlocal response change the collective plasmonic behavior with important consequences for e.g. field-enhancement and extin…
Refractive-index sensing with ultra-thin plasmonic nanotubes
S. Raza, G. Toscano, A. -P. Jauho +2
We study the refractive-index sensing properties of plasmonic nanotubes with a dielectric core and ultra-thin metal shell. The few-nm thin metal shell is described by both the usua…
Fundamental limitations to gain enhancement in periodic media and waveguides
Jure Grgić, Johan Raunkjær Ott, Fengwen Wang +4
A common strategy to compensate for losses in optical nanostructures is to add gain material in the system. By exploiting slow-light effects it is expected that the gain may be enh…