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3.2 Solids and Nanostructures: Electrons, Spins, and Phonons
Project coordinator(s): C. von Korff Schmising, M. Wörner
Overview

Project Goals

In this project we investigate ultrafast and nonlinear phenomena in solids and nanostructures. Both fundamental questions of basic research and current questions of applied research are addressed.

In highly correlated condensed matter systems, electron-electron and electron-phonon correlations lead to a broad range of novel and unusual phenomena, which are interesting from the point of view of both fundamental research and practical applications. To gain new insight into fundamental phenomena in this thriving field of research we perform experiments with ultrafast time and nanometer spatial resolution and experiments using ultrashort pulses with high electric field amplitudes. The project comprises five experimental sections, each of which exploits different properties of ultrashort laser pulses. Details of these topics can be found under the links below.

 

The figure shows a two-dimensional correlation spectrum of intersubband
transitions in a double quantum well structure which are strongly coupled to
longitudinal optical phonons (result of topic T1).

 

Topics

 

Key Publications

C3-P-2016.01 Carmine Somma, Giulia Folpini, Klaus Reimann, Michael Woerner, Thomas Elsaesser
Two-phonon quantum coherences in indium antimonide studied by nonlinear two-dimensional terahertz spectroscopy
Physical Review Letters 116 (2016) 177401/1-5
URL, DOI or PDF-File
A1-P-2010.07 C. Mauclair A. Mermillod-Blondin S. Landon N. Huot A. Rosenfeld I. V. Hertel E. Audouard I. Myiamoto R. Stoian
Single-pulse ultrafast laser imprinting of axial dot arrays in bulk glasses
Optics Letters 36 (2011) 325-327
URL, DOI or PDF-File
C2-P-2016.11 Juan Jimenez and Jens W. Tomm
Spectroscopic Analysis of Optoelectronic Semiconductors
Springer Series in Optical Sciences 202, Springer (2016)
URL, DOI or PDF-File
B1-P-2015.17 F. Willems, C. T. L. Smeenk, N. Zhavoronkov, O. Kornilov, I. Radu, M. Schmidbauer, M. Hanke, von Korff Schmising, C., M. J. J. Vrakking, S. Eisebitt
Probing ultrafast spin dynamics with high-harmonic magnetic circular dichroism spectroscopy
Physical Review B 92 (2015) 220405(R)/1-5
URL, DOI or PDF-File

Link to all project related publications

 

Highlights