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Proceedings Paper

Ultrafast dynamics and near-field optics of light transmission through plasmonic crystals
Author(s): C. Lienau; C. Ropers; G. Stibenz; G. Steinmeyer; R. Muller; D. J. Park; K G. Lee; J. Kim; Q. H. Park; D. S. Kim
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Paper Abstract

Using near-field scanning optical microscopy and ultrafast laser spectroscopy, we study the linear optical properties of subwavelength nanoslit and nanohole arrays in metal films, which are prototype structures for novel plasmonic crystals. Near-field microscopy provides direct evidence for surface plasmon polariton (SPP) excitation and allows for spatial imaging of the corresponding SPP modes. By employing spectral interferometry with ultrashort 11-fs light pulses, we directly reconstruct the temporal structure of the electric field of these pulses as they are transmitted through the metallic nanostructures. The analysis of these data allows for a quantitative extraction of the plasmonic band structure and the radiative damping of the corresponding SPP modes. Clear evidence for plasmonic band gap formation is given. Our results reveal that the coherent coupling between different SPP modes can result in a pronounced suppression of radiative SPP damping, increasing the SPP lifetime from 30 fs to more than 200 fs. These findings are relevant for optimizing and manipulating the optical properties of novel nano-plasmonic devices.

Paper Details

Date Published: 3 June 2005
PDF: 11 pages
Proc. SPIE 5825, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, (3 June 2005); doi: 10.1117/12.604641
Show Author Affiliations
C. Lienau, Max-Born-Institut fur Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
C. Ropers, Max-Born-Institut fur Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
G. Stibenz, Max-Born-Institut fur Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
G. Steinmeyer, Max-Born-Institut fur Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
R. Muller, Max-Born-Institut fur Nichtlineare Optik und Kurzzeitspektroskopie (Germany)
D. J. Park, Seoul National Univ. (South Korea)
K G. Lee, Seoul National Univ. (South Korea)
J. Kim, Korea Research Institute of Standards and Science (South Korea)
Q. H. Park, Korea Univ. (South Korea)
D. S. Kim, Seoul National Univ. (South Korea)


Published in SPIE Proceedings Vol. 5825:
Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks
Gerald Farrell; David M. Denieffe; Liam Barry; John Gerard McInerney; Harold S. Gamble; Padraig Hughes; R. Alan Moore, Editor(s)

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