Optimal tapers for compensating losses in plasmonic waveguides

Arthur R. Davoyan; Ilya V. Shadrivov; Yuri S. Kivshar; Dmitri K. Gramotnev

doi:10.1002/pssr.201004220

Optimal tapers for compensating losses in plasmonic waveguides

Arthur R. Davoyan^*, Ilya V. Shadrivov, Yuri S. Kivshar, Dmitri K. Gramotnev

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We consider propagation of surface plasmon polaritons in two-dimensional tapered slot waveguides. We derive an analytical formula for the change of the amplitude of a plasmon mode due to tapering. We show that the taper leads to the field enhancement effectively compensating the mode attenuation due to losses. We obtain numerically the shape of the optimal function of the taper that provides exact loss compensation. (

Original language	English
Pages (from-to)	277-279
Number of pages	3
Journal	Physica Status Solidi - Rapid Research Letters
Volume	4
Issue number	10
DOIs	https://doi.org/10.1002/pssr.201004220
Publication status	Published - Oct 2010

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abstract = "We consider propagation of surface plasmon polaritons in two-dimensional tapered slot waveguides. We derive an analytical formula for the change of the amplitude of a plasmon mode due to tapering. We show that the taper leads to the field enhancement effectively compensating the mode attenuation due to losses. We obtain numerically the shape of the optimal function of the taper that provides exact loss compensation. (",

keywords = "Plasmonics, Subwavelength optics, Taper, Waveguides",

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AU - Gramotnev, Dmitri K.

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N2 - We consider propagation of surface plasmon polaritons in two-dimensional tapered slot waveguides. We derive an analytical formula for the change of the amplitude of a plasmon mode due to tapering. We show that the taper leads to the field enhancement effectively compensating the mode attenuation due to losses. We obtain numerically the shape of the optimal function of the taper that provides exact loss compensation. (

AB - We consider propagation of surface plasmon polaritons in two-dimensional tapered slot waveguides. We derive an analytical formula for the change of the amplitude of a plasmon mode due to tapering. We show that the taper leads to the field enhancement effectively compensating the mode attenuation due to losses. We obtain numerically the shape of the optimal function of the taper that provides exact loss compensation. (

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KW - Subwavelength optics

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KW - Waveguides

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DO - 10.1002/pssr.201004220

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Optimal tapers for compensating losses in plasmonic waveguides

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