Comparison of Resonance Characteristics for Two Metal Nano-Optical Antennas

Abstract:

In this paper dipole type optical antenna and V type optical antenna are designed using gold and glass substrates, we compared their resonance properties by finite-difference time-domain (FDTD) method, calculated and analyzed their distribution and field enhancement effects contrastively. The results showed that in the same projected length, the resonant frequency of dipole type optical antenna was higher than the V type optical antenna, while the resonance enhancement factor was lower than the V type optical antenna. These have certain reference significance for researching characteristics of nanoantenna based on surface plasma.

• Periodical: Applied Mechanics and Materials (Volumes 138-139)
• Pages: 894-899
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.138-139.894
• Online since: November 2011
• Authors: Zong Heng Yuan, Dong Dong Zhu, Hong Ru Wang
• Keywords: Finite Difference Time Domain (FDTD), Metal, Nanooptical Antenna, Surface Plasmon Resonance (SPR)

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