Optoelectronic Quantum Transport

 

 

 

We explore the optoelectronic quantum transport in nanoscale circuits. Hereby, ballistic, thermoelectric, quantized, and spin-related transport processes are equally explored in mesoscopic circuits as coherently controlled photocurrent- and conductance phenomena.

 

Recent Highlights 


Ultrafast helicity control of surface currents in topological insulators with near-unity fidelity


Optoelectronic transport through quantum Hall edge states


Propagation length of mesoscopic photocurrents in a 2DEG


Enlarged magnetic focusing radius of photoinduced ballistic currents


Spatially resolved ballistic optoelectronic transport measured by quantized photocurrent spectroscopy


Quantum interference control of femtosecond, µA current bursts in single GaAs nanowires


 

Collaborations

Markus Betz (Dortmund, Germany), Peter Hänggi (Augsburg), Dieter Schuh (Regensburg, Germany), Werner Wegscheider (Zürich, Switzerland), Jörg P. Kotthaus (LMU München), Sigmund Kohler (Madrid, Spain), Yonqing Li (IOP Beijing, China)

 

Recent Publications

A list of recent publications can be found here.

 

Funding

Funding by the following institutions is gratefully acknowledged: 

DFG, Priority Program 1285: Semiconductor Spintronics

Nanosystems Initiative Munich

TUM Technische Universität München TUM Technische Universität München Physik Department Elektrotechnik und Informationstechnik TUM Technische Universität München
 

Contact

Prof. Alex Holleitner
Tel: +49 89 289 11575
Office: Z1.005
Email: holleitner(at)wsi.tum.de

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