Femtosecond surface plasmon interferometry | Zendy

Vasily V. Temnov | Zendy; Keith A. Nelson | Zendy; G. Armelles | Zendy; A. Cebollada | Zendy; Tim Thomay | Zendy; Alfred Leitenstorfer | Zendy; Rudolf Bratschitsch | Zendy

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Femtosecond surface plasmon interferometry

Author(s) -

Vasily V. Temnov,

Keith A. Nelson,

G. Armelles,

A. Cebollada,

Tim Thomay,

Alfred Leitenstorfer,

Rudolf Bratschitsch

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.008423

Subject(s) - optics , femtosecond , interferometry , plasmon , surface plasmon , materials science , picosecond , surface plasmon polariton , wavelength , groove (engineering) , white light interferometry , laser , optoelectronics , physics , metallurgy

We demonstrate femtosecond plasmonic interferometry with a novel geometry. The plasmonic microinterferometer consists of a tilted slit-groove pair. This arrangement allows for (i) interferometric measurements at a single wavelength with a single microinterferometer and (ii) unambiguous discrimination between changes in real and imaginary parts of the metal dielectric function. The performance is demonstrated by monitoring the sub-picosecond dynamics of hot electrons in gold.

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