Femtosecond Laser-Excited Two-Photon Fluorescence Microscopy of Surface Plasmon Polariton

Femtosecond Laser-Excited Two-Photon Fluorescence Microscopy of Surface Plasmon Polariton

We demonstrate microscopic imaging of surface plasmon polaritons (SPPs) on silver films excited by 11 fs near-infrared laser pulses. A fluorescence layer placed on the silver film converts surface electromagnetic fields to propagating lights in visible wavelengths via two-photon excitation process....

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Veröffentlicht in:Japanese Journal of Applied Physics 2012-04, Vol.51 (4), p.04DG03-04DG03-4
Hauptverfasser: Hattori, Tatsumi, Kubo, Atsushi, Oguri, Katsuya, Nakano, Hidetoshi, Miyazaki, Hideki T
Format: Artikel
Sprache:eng
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Zusammenfassung:We demonstrate microscopic imaging of surface plasmon polaritons (SPPs) on silver films excited by 11 fs near-infrared laser pulses. A fluorescence layer placed on the silver film converts surface electromagnetic fields to propagating lights in visible wavelengths via two-photon excitation process. The wavelength of SPP determined from fluorescence micrographs agrees well with the calculated value of SPP at the silver-fluorescent film interface.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.51.04DG03