Coupled Plasmonic Cavities on Moire Surfaces |
| |
Authors: | Sinan Balci Mustafa Karabiyik Askin Kocabas Coskun Kocabas Atilla Aydinli |
| |
Institution: | (1) Advanced Research Laboratory, Turk Telekom Laboratory, Department of Physics, Bilkent University, Ankara, 06800, Turkey;(2) FAS Center for Systems Biology, Harvard University, Cambridge, MA 02138, USA |
| |
Abstract: | Surface plasmon polariton (SPP) waveguides formed by coupled plasmonic cavities on metallic Moire surfaces have been investigated
both experimentally and numerically. The Moire surface, fabricated by interference lithography, contains periodic arrays of
one-dimensional cavities. The coupling strength between the cavities has been controlled by changing the periodicities of
the Moire surface. The ability to control the coupling strength allows us to tune the dispersion and the group velocity of
the plasmonic coupled cavity mode. Reflection measurements and numerical simulation of the array of SPP cavities have shown
a coupled resonator type plasmonic waveguide band formation within the band gap. Coupling coefficients of cavities and group
velocities of SPPs are calculated for a range of cavity sizes from weakly coupled regime to strongly coupled regime. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|