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TUT: Tutorials

TUT 1: Tutorial: Coherent Control (HL)

TUT 1.2: Tutorium

Sonntag, 10. März 2013, 16:35–17:10, H2

Coherent control in ultrafast nano-optics — •Tobias Brixner¹, Martin Aeschlimann², and Walter Pfeiffer³ — ¹Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg — ²Fachbereich Physik and Research Center OPTIMAS, Technische Universität Kaiserslautern, Erwin-Schrödinger-Str. 46, 67663 Kaiserslautern — ³Fakultät für Physik, Universität Bielefeld, Universitätsstr. 25, 33615 Bielefeld

Coherent control in general exploits the phase properties of light fields to manipulate coherent processes. While these concepts have initially been developed for molecular systems, it has recently become possible also to control nano-optical phenomena, i.e., the properties of electromagnetic fields below the diffraction limit of light. In this talk it will be shown how shaped femtosecond laser pulses can be used to achieve spatial and spatiotemporal control, and fundamental mechanisms will be illustrated [1]. Apart from closed-loop implementations using iterative learning algorithms, analytic schemes have been developed and realized experimentally. Applications of ultrafast nano-control also make possible novel nonlinear spectroscopy techniques.

[1] W. Pfeiffer, M. Aeschlimann, and T. Brixner, “Coherent control of nano-optical excitations,” in “Optical Antennas,” M. Agio and A. Alù, eds. (Cambridge University Press, 2013), Chapter 9.