TY - GEN
T1 - Scattering properties of vein induced localized surface plasmon resonances on a gold disk
AU - Amin, Muhammad
AU - Bagci, Hakan
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2011/12
Y1 - 2011/12
N2 - It is demonstrated via simulations that a gold nano-disk with a non-concentric cavity supports localized surface plasmon resonances over a frequency band that includes the visible and the near-infrared parts of the spectrum. The charge distribution on the disk indicates that the two distinct peaks in the scattering cross section are due to the (hybridized) higher-order plasmon modes; plasmon hybridization that involves the dipole modes of the disk and the cavity enforces the "coupling" of the plane-wave excitation to the originally-dark higher-order modes. It is further demonstrated that the resonance frequencies can be tuned by varying the radius of the embedded non-concentric cavity. The near-field enhancement observed at these two tunable resonance frequencies suggests that the proposed structure can be used as a substrate in surface enhanced spectroscopy applications. © 2011 IEEE.
AB - It is demonstrated via simulations that a gold nano-disk with a non-concentric cavity supports localized surface plasmon resonances over a frequency band that includes the visible and the near-infrared parts of the spectrum. The charge distribution on the disk indicates that the two distinct peaks in the scattering cross section are due to the (hybridized) higher-order plasmon modes; plasmon hybridization that involves the dipole modes of the disk and the cavity enforces the "coupling" of the plane-wave excitation to the originally-dark higher-order modes. It is further demonstrated that the resonance frequencies can be tuned by varying the radius of the embedded non-concentric cavity. The near-field enhancement observed at these two tunable resonance frequencies suggests that the proposed structure can be used as a substrate in surface enhanced spectroscopy applications. © 2011 IEEE.
UR - http://hdl.handle.net/10754/564465
UR - http://ieeexplore.ieee.org/document/6149824/
UR - http://www.scopus.com/inward/record.url?scp=84857468738&partnerID=8YFLogxK
U2 - 10.1109/HONET.2011.6149824
DO - 10.1109/HONET.2011.6149824
M3 - Conference contribution
SN - 9781457711695
SP - 237
EP - 240
BT - 8th International Conference on High-capacity Optical Networks and Emerging Technologies
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -