Two-dimensional metallic nanobottle arrays with different aperture sizes have been fabricated by using interference lithography and their corresponding dispersion relations have been mapped by angle-dependent reflectivity measurement. Verified by finite-difference time-domain simulation, features arising from Bragg scattered surface plasmon polaritons (SPPs), localized SPPs, and Wood’s anomalies are clearly observed from the dispersion relations. In addition, it is found that changing the aperture size of the nanobottle can strongly modify the field strength and pattern of the SPPs. It is expected that nanobottle arrays can find applications in areas such as surface-enhanced Raman scattering and thermovoltaic devices.
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Li et al. (2008) studied this question.
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