Directional control of surface plasmon polariton waves propagating through an asymmetric Bragg resonator

Choi, S. B.; Park, D. J.; Jeong, Y. K.; Yun, Y. C.; Jeong, M. S.; Byeon, C. C.; Kang, J. H.; Park, Q.-Han; Kim, D. S.
February 2009
Applied Physics Letters;2/9/2009, Vol. 94 Issue 6, pN.PAG
Academic Journal
We have demonstrated the directional control of surface plasmon polariton (SPP) waves propagating through an asymmetric plasmonic Bragg resonator using femtosecond temporal-phase control via the resonant coupling of SPPs and the interference of SPPs. The near-field images display significant temporal-phase dependence, switching between left and right propagation after the Bragg resonator. Our results would be a key step toward the control of surface plasmon propagation direction in nanoscaled plasmonic applications


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