Femtosecond surface plasmon interferometry
Author(s)Temnov, Vasily V.; Nelson, Keith Adam; Armelles, Gaspar; Cebollada, Alfonso; Thomay, Tim; Leitenstorfer, Alfred; Bratschitsch, Rudolf; ... Show more Show less
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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.
DepartmentMassachusetts Institute of Technology. Department of Chemistry
Optical Society of America
Temnov, Vasily V., Keith A. Nelson, Gaspar Armelles, Alfonso Cebollada, Tim Thomay, Alfred Leitenstorfer, and Rudolf Bratschitsch, "Femtosecond surface plasmon interferometry," Opt. Express 17, 8423-8432 (2009) © 2009 Optical Society of America.
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