Femtosecond plasmon interferometer

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Fig. 1. Schematic of the tilted slit-groove interferometer: (a)top view,(b)excitation scheme.

 

Melentiev and his colleagues have realized a plasmonic interferometer formed by a nanoslit and a nanogroove in a single-crystal gold film. The possibility of measuring laser pulses of ultimately short durations, corresponding to two periods of a light wave (6 fs pulse duration), has been demonstrated using this interferometer.

Source: http://www.sciencedirect.com/science/article/pii/S0030401816306496

Related paper:

 

Melentiev et al.,Femtosecond plasmon interferometer, Optics Communications, Volume 382, 2017, Pages 509-513.

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