Plasmonic coupling of bow tie antennas with Ag nanowire

Zheyu Fang; Linran Fan; Chenfang Lin; Dai Zhang; Alfred J. Meixner; Xing Zhu

doi:10.1021/nl200179y

Plasmonic coupling of bow tie antennas with Ag nanowire

Zheyu Fang, Linran Fan, Chenfang Lin, Dai Zhang, Alfred J. Meixner, Xing Zhu

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

152 Scopus citations

Abstract

Ag nanowire with the receiving and transmitting Ag bow tie antenna pairs at its incident and emission ends was patterned on the SiO₂ substrate to realize an enhanced surface plasmon emission with a factor of 45 compared to the single Ag nanowire without antenna pairs. The receiving and transmitting bow tie antenna pairs enhanced the plasmon coupling and emission efficiencies of the Ag nanowire. And the maximum plasmon emission sensitively depended on the length of Ag nanowire, the arm length of bow tie antennas, and the incident angle of optical excitation. This enhanced plasmon emission was confirmed by finite-difference time-domain simulations and explored with analytical calculations using the impedance matching theory at optical frequency.

Original language	English (US)
Pages (from-to)	1676-1680
Number of pages	5
Journal	Nano Letters
Volume	11
Issue number	4
DOIs	https://doi.org/10.1021/nl200179y
State	Published - Apr 13 2011
Externally published	Yes

Keywords

Ag nanowire
Surface Plasmon
bow tie antennas
finite-difference time domain
impedance matching
scanning near-field optical microscopy

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl200179y

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title = "Plasmonic coupling of bow tie antennas with Ag nanowire",

abstract = "Ag nanowire with the receiving and transmitting Ag bow tie antenna pairs at its incident and emission ends was patterned on the SiO2 substrate to realize an enhanced surface plasmon emission with a factor of 45 compared to the single Ag nanowire without antenna pairs. The receiving and transmitting bow tie antenna pairs enhanced the plasmon coupling and emission efficiencies of the Ag nanowire. And the maximum plasmon emission sensitively depended on the length of Ag nanowire, the arm length of bow tie antennas, and the incident angle of optical excitation. This enhanced plasmon emission was confirmed by finite-difference time-domain simulations and explored with analytical calculations using the impedance matching theory at optical frequency.",

keywords = "Ag nanowire, Surface Plasmon, bow tie antennas, finite-difference time domain, impedance matching, scanning near-field optical microscopy",

author = "Zheyu Fang and Linran Fan and Chenfang Lin and Dai Zhang and Meixner, {Alfred J.} and Xing Zhu",

year = "2011",

month = apr,

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doi = "10.1021/nl200179y",

language = "English (US)",

volume = "11",

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journal = "Nano Letters",

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T1 - Plasmonic coupling of bow tie antennas with Ag nanowire

AU - Fang, Zheyu

AU - Fan, Linran

AU - Lin, Chenfang

AU - Zhang, Dai

AU - Meixner, Alfred J.

AU - Zhu, Xing

PY - 2011/4/13

Y1 - 2011/4/13

N2 - Ag nanowire with the receiving and transmitting Ag bow tie antenna pairs at its incident and emission ends was patterned on the SiO2 substrate to realize an enhanced surface plasmon emission with a factor of 45 compared to the single Ag nanowire without antenna pairs. The receiving and transmitting bow tie antenna pairs enhanced the plasmon coupling and emission efficiencies of the Ag nanowire. And the maximum plasmon emission sensitively depended on the length of Ag nanowire, the arm length of bow tie antennas, and the incident angle of optical excitation. This enhanced plasmon emission was confirmed by finite-difference time-domain simulations and explored with analytical calculations using the impedance matching theory at optical frequency.

AB - Ag nanowire with the receiving and transmitting Ag bow tie antenna pairs at its incident and emission ends was patterned on the SiO2 substrate to realize an enhanced surface plasmon emission with a factor of 45 compared to the single Ag nanowire without antenna pairs. The receiving and transmitting bow tie antenna pairs enhanced the plasmon coupling and emission efficiencies of the Ag nanowire. And the maximum plasmon emission sensitively depended on the length of Ag nanowire, the arm length of bow tie antennas, and the incident angle of optical excitation. This enhanced plasmon emission was confirmed by finite-difference time-domain simulations and explored with analytical calculations using the impedance matching theory at optical frequency.

KW - Ag nanowire

KW - Surface Plasmon

KW - bow tie antennas

KW - finite-difference time domain

KW - impedance matching

KW - scanning near-field optical microscopy

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Plasmonic coupling of bow tie antennas with Ag nanowire

Abstract

Keywords

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