Abstract
A method to form the plasmonic lattice mode of periodic metallic nanoparticle arrays is presented. In the arrays, each Ag nanosphere is on the top of a SiO2 nanopillar which sits on a quartz substrate. The simulated results show that, in the wavelength range around the period of the arrays, the plasmonic lattice mode can be formed. The transmittance of the structure varies rapidly from the maximum to the minimum in a narrow wavelength band. This is attributed to the wavelength-dependent diffracted waves generated by the periodic arrays and the weak near-field coupling between Ag nanospheres and the quartz substrates. Increasing the height of SiO2 nanopillars can weaken the near-field coupling between Ag nanospheres and the quartz substrates, and lead to the greater effects of the diffracted waves on the transmittance. As a result, the plasmonic lattice mode can be optimized. This method provides a possible way to promote the application of the plasmonic lattice mode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
