Broadband energy conversion between off-plane Gaussian lightwave and in-plane surface plasmon waves

Sheng Hsiung Chang; Chao Yi Tai

doi:10.1109/LPT.2011.2169048

Broadband energy conversion between off-plane Gaussian lightwave and in-plane surface plasmon waves

Sheng Hsiung Chang, Chao Yi Tai

Department of Optics and Photonics

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

1 Scopus citations

Abstract

We report on highly efficient energy conversion between off-plane Gaussian beam and in-plane surface plasmon waves (SPWs). The finite-difference time-domain method was used to analyze the conversion efficiency. In contrast to the single plasmonic rib structure, coupled ribs provide broadband and highly efficient SPW-conversion due to enlarged coupling zone. The simulation shows that Gaussian beam-to-SPWs conversion efficiency can be higher than 50% for the wavelength range from 750 to 950 nm. Compared to in-plane excitation, the present structure is superior in terms of the critical dimension of fabrication, showing promise as an efficient SPW generator in plasmonic nano-circuritry.

Original language	English
Article number	6025256
Pages (from-to)	1727-1729
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	23
Issue number	22
DOIs	https://doi.org/10.1109/LPT.2011.2169048
State	Published - 2011

Keywords

Nanophotonics
numerical simulation
surface waves

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10.1109/LPT.2011.2169048

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title = "Broadband energy conversion between off-plane Gaussian lightwave and in-plane surface plasmon waves",

abstract = "We report on highly efficient energy conversion between off-plane Gaussian beam and in-plane surface plasmon waves (SPWs). The finite-difference time-domain method was used to analyze the conversion efficiency. In contrast to the single plasmonic rib structure, coupled ribs provide broadband and highly efficient SPW-conversion due to enlarged coupling zone. The simulation shows that Gaussian beam-to-SPWs conversion efficiency can be higher than 50% for the wavelength range from 750 to 950 nm. Compared to in-plane excitation, the present structure is superior in terms of the critical dimension of fabrication, showing promise as an efficient SPW generator in plasmonic nano-circuritry.",

keywords = "Nanophotonics, numerical simulation, surface waves",

author = "Chang, {Sheng Hsiung} and Tai, {Chao Yi}",

note = "Funding Information: Manuscript received May 09, 2011; revised August 04, 2011; accepted September 14, 2011. Date of publication September 22, 2011; date of current version October 28, 2011. This work was supported by the National Science Council, Taiwan, under Contact NSC 98-2112-M-008-002-MY2.",

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T1 - Broadband energy conversion between off-plane Gaussian lightwave and in-plane surface plasmon waves

AU - Chang, Sheng Hsiung

AU - Tai, Chao Yi

N1 - Funding Information: Manuscript received May 09, 2011; revised August 04, 2011; accepted September 14, 2011. Date of publication September 22, 2011; date of current version October 28, 2011. This work was supported by the National Science Council, Taiwan, under Contact NSC 98-2112-M-008-002-MY2.

PY - 2011

Y1 - 2011

N2 - We report on highly efficient energy conversion between off-plane Gaussian beam and in-plane surface plasmon waves (SPWs). The finite-difference time-domain method was used to analyze the conversion efficiency. In contrast to the single plasmonic rib structure, coupled ribs provide broadband and highly efficient SPW-conversion due to enlarged coupling zone. The simulation shows that Gaussian beam-to-SPWs conversion efficiency can be higher than 50% for the wavelength range from 750 to 950 nm. Compared to in-plane excitation, the present structure is superior in terms of the critical dimension of fabrication, showing promise as an efficient SPW generator in plasmonic nano-circuritry.

AB - We report on highly efficient energy conversion between off-plane Gaussian beam and in-plane surface plasmon waves (SPWs). The finite-difference time-domain method was used to analyze the conversion efficiency. In contrast to the single plasmonic rib structure, coupled ribs provide broadband and highly efficient SPW-conversion due to enlarged coupling zone. The simulation shows that Gaussian beam-to-SPWs conversion efficiency can be higher than 50% for the wavelength range from 750 to 950 nm. Compared to in-plane excitation, the present structure is superior in terms of the critical dimension of fabrication, showing promise as an efficient SPW generator in plasmonic nano-circuritry.

KW - Nanophotonics

KW - numerical simulation

KW - surface waves

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DO - 10.1109/LPT.2011.2169048

M3 - 期刊論文

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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Broadband energy conversion between off-plane Gaussian lightwave and in-plane surface plasmon waves

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Keywords

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