TY - GEN
T1 - Thickness dependent transmission spectra of gold nanoring arrays
AU - Ou, Neil
AU - Lee, Huang Ming
AU - Shyu, Jia Hong
AU - Horng, Lance
AU - Wu, Jong-Ching
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Optical transmission properties of periodic gold nanoring arrays fabricated on a free-standing silicon nitride membrane have been investigated experimentally and numerically. The transmission dips caused by the localized surface plasmon resonance (LSPR) are observed and the simulated results show pretty good agreement with the experimental data. The analysis of the electric field distributions indicates the existence of symmetric bonding modes and asymmetric anti-bonding modes of LSPR in the gold nanoring arrays. In addition, the electric field may be enhanced not only at the center of the gold nanorings but also in the spaces between the rings. Moreover, a transition from the anti-bonding mode to bonding mode is achieved by increasing the thickness of the ring. This phenomenon could be interpreted by the effect of linewidth-thickness ratio successfully. These properties may provide valuable and promising applications of advanced LSPR optical devices.
AB - Optical transmission properties of periodic gold nanoring arrays fabricated on a free-standing silicon nitride membrane have been investigated experimentally and numerically. The transmission dips caused by the localized surface plasmon resonance (LSPR) are observed and the simulated results show pretty good agreement with the experimental data. The analysis of the electric field distributions indicates the existence of symmetric bonding modes and asymmetric anti-bonding modes of LSPR in the gold nanoring arrays. In addition, the electric field may be enhanced not only at the center of the gold nanorings but also in the spaces between the rings. Moreover, a transition from the anti-bonding mode to bonding mode is achieved by increasing the thickness of the ring. This phenomenon could be interpreted by the effect of linewidth-thickness ratio successfully. These properties may provide valuable and promising applications of advanced LSPR optical devices.
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U2 - 10.1109/NANO.2011.6144464
DO - 10.1109/NANO.2011.6144464
M3 - Conference contribution
AN - SCOPUS:84858990284
SN - 9781457715143
T3 - Proceedings of the IEEE Conference on Nanotechnology
SP - 1551
EP - 1556
BT - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
T2 - 2011 11th IEEE International Conference on Nanotechnology, NANO 2011
Y2 - 15 August 2011 through 19 August 2011
ER -