TY - JOUR
T1 - Modeling the optical interaction between a carbon nanotube and a plasmon resonant sphere
AU - Hanson, George W.
AU - Smith, Paul
N1 - Copyright 2007 IEEE. Reprinted from IEEE transactions on antennas and propagation. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
PY - 2007/11
Y1 - 2007/11
N2 - A model is presented for the electromagnetic interaction between a carbon nanotube and an electrically-small sphere, such as a plasmonic metal particle. The sphere is characterized by its dipole moment, which is coupled to an integral equation for the nanotube. The model can be easily adapted to other systems consisting of electrically-small objects coupled to larger objects requiring a full-wave treatment. It is found that the presence of a non-plasmonic electrically-small sphere has a small effect on observed system properties, but that a plasmonic nanosphere in close proximity to a carbon nanotube leads to pronounced coupling, and may be useful as a way to excite carbon nanotube antennas. Furthermore, backscattering from a plasmonic nanosphere-carbon nanotube system is dominated by the nanosphere response. An approximate analytical solution is provided for the current induced on a nanotube in the presence of a plasmonic nanosphere.
AB - A model is presented for the electromagnetic interaction between a carbon nanotube and an electrically-small sphere, such as a plasmonic metal particle. The sphere is characterized by its dipole moment, which is coupled to an integral equation for the nanotube. The model can be easily adapted to other systems consisting of electrically-small objects coupled to larger objects requiring a full-wave treatment. It is found that the presence of a non-plasmonic electrically-small sphere has a small effect on observed system properties, but that a plasmonic nanosphere in close proximity to a carbon nanotube leads to pronounced coupling, and may be useful as a way to excite carbon nanotube antennas. Furthermore, backscattering from a plasmonic nanosphere-carbon nanotube system is dominated by the nanosphere response. An approximate analytical solution is provided for the current induced on a nanotube in the presence of a plasmonic nanosphere.
UR - http://www.scopus.com/inward/record.url?scp=36849076231&partnerID=8YFLogxK
U2 - 10.1109/TAP.2007.908555
DO - 10.1109/TAP.2007.908555
M3 - Article
AN - SCOPUS:36849076231
VL - 55
SP - 3063
EP - 3069
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 11 I
ER -