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Lecture Valentyn I. Prokhorenko

Rooster

WanneerWaar
10 juni 2011 FWN-Building 5116.0116, Nijenborgh 4, 9747 AG, Groningen
Speaker: Valentyn I. Prokhorenko , PhD
Affiliation:

University of Hamburg , Physics Department,

Max Planck Research Department for Structural Dynamics, Centre of Free Electron Laser Science, DESY, Hamburg, Germany
Title: Two-dimensional electric spectroscopy with coherent control capabilities
Date: Fri Jun 10, 2011
Start: 12.30
Location: FWN-Building 5116.0116
Host: Maxim S. Pshenichnikov
Telephone: +31 50 363 4159

Abstract

Two-dimensional photon-echo electronic spectroscopy is an excellent tool for the study of the

optical properties of molecules and excitonically-coupled systems. The short excitation pulses

(tens of fs), driving coherently the vibrational modes in the ground and excited states of a

molecule, have been used in such measurements to maximize an excitation bandwidth and to

provide a large spectral window for probing spectral evolution of quantum systems. I will

briefly introduce this new spectroscopic technique and fundamental issues related to

formation of the two-dimensional spectra, and give an excursus into new developments based

on implementation of diffractive optic for the multi-beam interferometers [1].

Further, recent results obtained using new coherent control strategies for multidimensional

spectroscopies will be discussed in terms of probing level-dependent dephasing and quantum

decoherence, as well as experimental evidence for controlling quantum decoherence in

complex systems [2]. These new developments have attained what can be considered the

optical equivalent of NMR.

 

1. V.I. Prokhorenko, A. Halpin, and R.J.D. Miller, Opt. Express 17, 9764 (2009).

2. V.I. Prokhorenko, A. Halpin, and R.J.D. Miller, Farad. Disucc., in press (2011).

Laatst gewijzigd:22 oktober 2012 14:31