| Name | Institute | Period |
|---|
| Ali Ahari | Sharif University of Technology, Tehran, Iran | 07/2011-09/2011 |
| Susana Eiroa Lorenzo | Instituto de Microelectrónica de Sevilla | 09/2011-11/2011 |
| Dr. Michal Varchola | Technical University of Košice, Faculty of Electrotechnics & Informatics | 10/2010 – 01/2011 |
| Alessandro Barenghi | Politecnico di Milano, Italy | 2/2010 - 4/2010 |
| Florian Praden | Ecole Normale Supérieure, France | 3/2009 - 7/2009 |
| Amir Moradi | Sharif University of Technology, Tehran, Iran | 09/2007 - 5/2008 |
| Saar Drimer | The University of Cambridge, United Kingdom | 11/2007 - 2/2008 |
| Miguel Morales Sandoval | Instituto Nacional de Astrofisica, Mexico | 11/2007 - 1/2008 |
| Michael Dubs | The University of New South Wales, Australia | 7/2007 - 9/2007 |
| Francesco Regazzoni | Advanced Learning and Research Institute, University of Lugano, Switzerland | 12/2006 - 5/2007 |
| Selcuk Baktir | Worcester Polytechnic Institute, USA | 6/2005 - 7/2005 |
| Marco Macchetti | Politecnico di Milano, Italy | 3/2005 - 6/2005 |
| Dr. Martin Simka | Technical University of Košice, Faculty of
Electrical Engineering and Informatics | 8/2004 - 11/2004 |
| Johann Großschädel | TU Graz, Autria | 7/2004 - 9/2004 |
| Dr. HoWon Kim | ETRI, Korea | 6/2004 - 7/2004 |
| Jonathan Hammell | University of Waterloo, Canada | 1/2004 - 4/2004 |
| Philippe Rivard | University of Waterloo, Canada | 8/2003 - 12/2003 |
| Marco Girimondo | Advanced Learning and Research Institute, University of Lugano, Switzerland | 8/2003 - 9/2003 |
| Dr. David Chaum | | 1/2003 |
| Dr. Guang Gong | University of Waterloo, Canada | 11/2002 - 12/2002 |
| Guido Bertoni | Politecnico di Milano, Italy | 7/2002 - 8/2002 + 8/2003 |