Flat Surface Plasmon Polariton Bands in Bragg Grating Waveguide for Slow Light

The formations of the surface plasmonpolariton (SPP) bands in metal/air/metal (MAM) sub-wavelength plasmonic grating waveguide (PGW) are proposed. The band gaps originating from the highly localized resonances inside the grooves can be simply estimated from the round trip phase condition. Due to the overlap of the localized SPPs between the neighboring grooves, a Bloch mode forms in the bandgap and can be engineered to build a very flat dispersion for slow light. A chirped PGW with groove depth varying is also demonstrated to trap light, which is validated by finite-difference time-domain (FDTD) simulations with both continuous and pulse excitations.

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Approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-11-14T14:26:45Z (GMT) No. of bitstreams: 1 Flat Surface Plasmon Polariton Bands in Bragg Grating Waveguide for Slow Light.pdf: 915817 bytes, checksum: d433a62dd51bf9cdc67c4a6d9b008d7f (MD5)

Made available in DSpace on 2010-11-14T14:26:45Z (GMT). No. of bitstreams: 1 Flat Surface Plasmon Polariton Bands in Bragg Grating Waveguide for Slow Light.pdf: 915817 bytes, checksum: d433a62dd51bf9cdc67c4a6d9b008d7f (MD5) Previous issue date: 2010

Manuscript received January 31, 2010; revised April 22, 2010, May 14, 2010; accepted May 18, 2010. Date of publication June 01, 2010; date of current version July 07, 2010. This work was supported by the National Natural Science Foundation of China under Grant 60636030, Grant 60876049, and Grant 60906028.

国内

Manuscript received January 31, 2010; revised April 22, 2010, May 14, 2010; accepted May 18, 2010. Date of publication June 01, 2010; date of current version July 07, 2010. This work was supported by the National Natural Science Foundation of China under Grant 60636030, Grant 60876049, and Grant 60906028.