Temporal control of local plasmon distribution on Au nanocrosses by ultra-broadband femtosecond laser pulses and its application for selective two-photon excitation of multiple fluorophores

Opt Express. 2011 Jul 4;19(14):13618-27. doi: 10.1364/OE.19.013618.

Abstract

We theoretically demonstrate spatiotemporal control of local plasmon distribution on Au nanocrosses, which have different aspect ratios, by chirped ultra-broadband femtosecond laser pulses. We also demonstrate selective excitation of fluorescence proteins using this spatiotemporal local plasmon control technique for applications to two-photon excited fluorescence microscopy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Contrast Media
  • Gold*
  • Image Enhancement / methods*
  • Lasers*
  • Microscopy, Fluorescence, Multiphoton / methods*
  • Nanostructures*
  • Surface Plasmon Resonance / methods*

Substances

  • Contrast Media
  • Gold