Applied Physics B

, 105:231 | Cite as

Investigation of plasmonics resonance infrared bowtie metal antenna

  • W. Zhong
  • Y. Wang
  • R. He
  • X. ZhouEmail author


An approximate resonance wavelength equation that varies with metal antenna structure size is developed to design a bowtie gold metal antenna working at near-infrared (IR) wavelength. Bowtie antenna structures with resonance wavelength of 1.06 μm, 1.55 μm and 10.6 μm are designed based on this equation. A finite-difference time domain (FDTD) algorithm with total field scattered field (TFSF) source simulation shows the resonance wavelength of the designed structures being precisely in agreement with the expected wavelengths from the equation. Planar integration of the metal bowtie antennas is discussed as well. Gold nanohole bowtie antenna arrays are fabricated and the near-field optical transmission properties of the nanohole array are investigated with a near-field scanning optical microscope (NSOM). Our experimental results verify the near-field optical transmission performance and further demonstrate that they are in agreement with the theoretical calculation results. The high enhancement efficiency and integration of the metal bowtie antennas open the possibility of a wide application in IR optoelectronics detection and imaging.


Localize Surface Plasmon Resonance Resonance Wavelength Extinction Spectrum Planar Integration Exit Surface 
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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.School of Physical ElectronicsUniversity of Electronic Science and Technology of ChinaChengduP.R. China
  2. 2.Department of Electrical Engineering and Computer ScienceUniversity of MichiganAnn ArborUSA

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