The localized near-field enhancement of metallic periodic bowtie structure: An oscillating dipoles picture

Guanhai Li; Xiaoshuang Chen; Lujun Huang; Jian Wang; Weida Hu; Wei Lu

doi:10.1016/j.physb.2012.03.003

The localized near-field enhancement of metallic periodic bowtie structure: An oscillating dipoles picture

Guanhai Li
, Xiaoshuang Chen^*
, Lujun Huang
, Jian Wang
, Weida Hu
, Wei Lu

^*Corresponding author for this work

CAS - Shanghai Institute of Technical Physics

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

17 Scopus citations

Abstract

The metallic periodic bowtie structure is systematically investigated using a three-dimensional finite difference time domain (FDTD) method. The oscillating dipoles picture is proposed to explain the novel enhancement of localized near-field. It is indicated that the shift and the intensity change of notable resonant dips in the transmission spectrum result from the variation of localized surface plasmon resonance (LSPR) conditions due to the different geometrical sizes of the structure and the array periodicity. The results are helpful for guiding the bowtie structures to the application of the near-field imaging and sensing in the subwavelength optics.

Original language	English
Pages (from-to)	2223-2228
Number of pages	6
Journal	Physica B: Condensed Matter
Volume	407
Issue number	12
DOIs	https://doi.org/10.1016/j.physb.2012.03.003
State	Published - 15 Jun 2012
Externally published	Yes

Keywords

Localized near-field enhancement
Oscillating dipoles
Surface plasmon resonance
Transmission spectrum

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10.1016/j.physb.2012.03.003

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title = "The localized near-field enhancement of metallic periodic bowtie structure: An oscillating dipoles picture",

abstract = "The metallic periodic bowtie structure is systematically investigated using a three-dimensional finite difference time domain (FDTD) method. The oscillating dipoles picture is proposed to explain the novel enhancement of localized near-field. It is indicated that the shift and the intensity change of notable resonant dips in the transmission spectrum result from the variation of localized surface plasmon resonance (LSPR) conditions due to the different geometrical sizes of the structure and the array periodicity. The results are helpful for guiding the bowtie structures to the application of the near-field imaging and sensing in the subwavelength optics.",

keywords = "Localized near-field enhancement, Oscillating dipoles, Surface plasmon resonance, Transmission spectrum",

author = "Guanhai Li and Xiaoshuang Chen and Lujun Huang and Jian Wang and Weida Hu and Wei Lu",

year = "2012",

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doi = "10.1016/j.physb.2012.03.003",

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pages = "2223--2228",

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T1 - The localized near-field enhancement of metallic periodic bowtie structure

T2 - An oscillating dipoles picture

AU - Li, Guanhai

AU - Chen, Xiaoshuang

AU - Huang, Lujun

AU - Wang, Jian

AU - Hu, Weida

AU - Lu, Wei

PY - 2012/6/15

Y1 - 2012/6/15

N2 - The metallic periodic bowtie structure is systematically investigated using a three-dimensional finite difference time domain (FDTD) method. The oscillating dipoles picture is proposed to explain the novel enhancement of localized near-field. It is indicated that the shift and the intensity change of notable resonant dips in the transmission spectrum result from the variation of localized surface plasmon resonance (LSPR) conditions due to the different geometrical sizes of the structure and the array periodicity. The results are helpful for guiding the bowtie structures to the application of the near-field imaging and sensing in the subwavelength optics.

AB - The metallic periodic bowtie structure is systematically investigated using a three-dimensional finite difference time domain (FDTD) method. The oscillating dipoles picture is proposed to explain the novel enhancement of localized near-field. It is indicated that the shift and the intensity change of notable resonant dips in the transmission spectrum result from the variation of localized surface plasmon resonance (LSPR) conditions due to the different geometrical sizes of the structure and the array periodicity. The results are helpful for guiding the bowtie structures to the application of the near-field imaging and sensing in the subwavelength optics.

KW - Localized near-field enhancement

KW - Oscillating dipoles

KW - Surface plasmon resonance

KW - Transmission spectrum

UR - https://www.scopus.com/pages/publications/84862787247

U2 - 10.1016/j.physb.2012.03.003

DO - 10.1016/j.physb.2012.03.003

M3 - 文章

AN - SCOPUS:84862787247

SN - 0921-4526

VL - 407

SP - 2223

EP - 2228

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 12

ER -

The localized near-field enhancement of metallic periodic bowtie structure: An oscillating dipoles picture

Abstract

Keywords

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