Visiting Professor 

• Dublin City University, Ireland,      May 5 - June 4, 2024

• FOTON Institute, ENSSAT/ University of Rennes, France,  15-30 October, 2023

• University of Gothenburg, Sweden , Sept 24  - Oct 3, 2019

• Robert Gordon University, UK., From 24-30, June 2015

• Tampere University of Technology, Finland, From 8-27, November 2012