TY - GEN
T1 - Enhanced local fields in aperiodic rotationally symmetric nanosphere arrays
AU - Namin, F.
AU - Wang, X.
AU - Werner, Douglas Henry
PY - 2012/12/10
Y1 - 2012/12/10
N2 - Local field enhancements in aperiodic arrays of gold nanospheres are studied. The arrays are based on three aperiodic tilings of the plane which display 5, 7, and 8 fold rotational symmetries that are not possible in conventional periodic arrays. Electromagnetic (EM) field calculations are based on the analytical generalized Mie theory (GMT). It will be shown that despite the fact that aperiodic arrays are much sparser than periodic arrays, they display larger local field enhancements. Also due to their higher degree of rotational symmetry, the field enhancements are less dependent on the polarization of the incident radiation. Finally, it will be shown that local fields can be further enhanced by optimally placing perturbing spheres within the prototiles that comprise the aperiodic arrays.
AB - Local field enhancements in aperiodic arrays of gold nanospheres are studied. The arrays are based on three aperiodic tilings of the plane which display 5, 7, and 8 fold rotational symmetries that are not possible in conventional periodic arrays. Electromagnetic (EM) field calculations are based on the analytical generalized Mie theory (GMT). It will be shown that despite the fact that aperiodic arrays are much sparser than periodic arrays, they display larger local field enhancements. Also due to their higher degree of rotational symmetry, the field enhancements are less dependent on the polarization of the incident radiation. Finally, it will be shown that local fields can be further enhanced by optimally placing perturbing spheres within the prototiles that comprise the aperiodic arrays.
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U2 - 10.1109/APS.2012.6349267
DO - 10.1109/APS.2012.6349267
M3 - Conference contribution
AN - SCOPUS:84870573552
SN - 9781467304627
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
BT - 2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
T2 - Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
Y2 - 8 July 2012 through 14 July 2012
ER -