Partial loss compensation in dielectric-loaded plasmonic waveguides at near infra-red wavelengths | Zendy

C. Garcıa | Zendy; Víctor Coello | Zendy; Zhanghua Han | Zendy; Ilya P. Radko | Zendy; Sergey I. Bozhevolnyi | Zendy

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Partial loss compensation in dielectric-loaded plasmonic waveguides at near infra-red wavelengths

Author(s) -

C. Garcıa,

Víctor Coello,

Zhanghua Han,

Ilya P. Radko,

Sergey I. Bozhevolnyi

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.007771

Subject(s) - materials science , optics , surface plasmon polariton , surface plasmon , dielectric , optoelectronics , plasmon , wavelength , physics

We report on the fabrication and characterization of straight dielectric-loaded surface plasmon polaritons waveguides doped with lead-sulfide quantum dots as a near infra-red gain medium. A loss compensation of ~33% (an optical gain of ~143 cm⁻¹) was observed in the guided mode. The mode propagation, coupling efficiency and stimulated emission were characterized using leakage radiation microscopy. The guided mode signature was separated using spatial filters in the Fourier plane of the microscope for quantitative measurements of stimulated emission.

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