Surface plasmons at the interface between metal and dielectric with optical gain are analyzed. Proper choice of optical indices results in infinitely large effective refractive index, vanishing low group velocity, and deep sub-wavelength plasmon localization.
© 2005 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1960) Diffraction and gratings : Diffraction theory
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
I. Avrutsky, "Gain-Assisted Nanoscale Surface Plasmons," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper JTuC107.
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