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Dresden 2017 – scientific programme

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O: Fachverband Oberflächenphysik

O 37: Plasmonics and Nanooptics V: Light-Matter Interaction

O 37.3: Talk

Tuesday, March 21, 2017, 14:30–14:45, TRE Ma

Modulation of extraordinary optical transmission through nanohole arrays using ultrashort laser pulsesKellie Pearce1,2, Benjamin Duschner1, Robin Dehde1, Florian Richter1, and •Ulf Kleineberg1,21Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany — 2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany

We perform pump-probe measurements of the transmission through subwavelength hole arrays in a gold film on ITO using 16-fs laser pulses. By tuning the delay between the pulses, we can modify the contribution from different transmission resonances, and observe plasmon dephasing and decay. Simulations using a 3D FDTD solver show that the modulation of the transmission is due to the change in the intensity and distribution of fields on both interfaces.

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