Multiscale beam evolution and shaping in corrugated plasmonic systems

S. Thongrattanasiri, D. C. Adams, D. Wasserman, V. A. Podolskiy

Research output: Contribution to journalArticlepeer-review


We analyze, theoretically and experimentally, the dynamics of the wavepackets in plasmonic beaming devices, and show that the beam evolution in this class of structures is a multiscale phenomenon, which initiates in the near-field proximity of the device, develops continuously over a new length scale many times the wavelength of the light, and is completed well into the far-field of the system. We develop a quantitative description of the light evolution in the beaming structures and verify our theoretical predictions with experiments. Our analytical results are utilized to develop plasmonic geometries for shaping the mid-field beam evolution, and experimental results from these structures are demonstrated.

Original languageEnglish (US)
Pages (from-to)9269-9281
Number of pages13
JournalOptics Express
Issue number10
StatePublished - May 9 2011
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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