Principal Investigator

Prof. Dr. Eleftherios Goulielmakis

Office: 164
Email: eleftherios.goulielmakis(at)
Phone number: +49 (0)381 498-6800
Fax number: +49(0)381 498-6802

E. Goulielmakis is leading the research activities of the Xtreme Photonics group. He received his Bachelor's and Master's degrees in Physics and Optoelectronics respectively from the University of Crete, Greece and the PhD degree (Dr. rer. Nat.) from Ludwig-Maximilians-Universität (LMU) in Munich in 2005.

Administrative assistant

Annika Machotzek

Office: 163
Email: annika.machotzek(at)
Phone number: +49 (0)381 498-6801
Fax number: +49(0)381 498-6802

Postdoctoral Researchers

Hee-Yong Kim

Office: 159
Phone number: +49 (0)381 498-6804
Fax number: +49(0)381 498-6802

Hee-Yong Kim obtained his Bachelor's degree in physics from Korea Advanced Institute of Science and Technology (KAIST), Korea and a Master's and PhD degrees from the Ludwig-Maximilians-Universität (LMU), Germany. 

PhD Students

Santanu Mandal

Office: 160
Email: santanu.mandal(at)
Phone number: +49 (0)381 498-6806
Fax number: +49(0)381 498-6802

Santanu Mandal received his Bachelor's degree in physics from Vidyasagar University, India and his Master's degree from SN Bose National Center for Basic Sciences. He is currently working on advancing laser based microscopy techniques with picometer resolution.

Zekun Pi

Office: 160
Email:  zekun.pi(at)
Phone number: +49 (0) 381 498-6806
Fax number: +49 (0) 381 498-6802

Zekun Pi obtained his Bachelor's degree in physics from Lanzhou University, China and his Master's degree from Nankai University, China. His research is focused on the spatiotemporal tracking of electron motion in solids.

Praful Kumar

Office: 162
Email: praful.kumar2(at)
Phone number: +49 (0)381 498-6808
Fax number: +49(0)381 498-6802

After a brief stint in Thermal Engineering research, he obtained his master’s degree from the Indian Institute of Science, Bengaluru where he worked on ‘Scattering of Light by Anisotropic Particles’ for his master's thesis.

Denja Vaso

Office: 161
Email: denja.vaso(at)
Phone number: +49 (0)381 498-6814
Fax number: +49(0)381 498-6802

Denja Vaso received her BSc in Physics and her MSc in Materials Physics and Technology from the Aristotle University of Thessaloniki, Greece. Her previous research primarily focused on Raman spectroscopy of nanoscale and biomedical systems.

Cyril Benny

Office: 161
Email: cyril.benny(at)
Phone number: +49 (0)381 498-6814
Fax number: +49(0)381 498-6802

Cyril Benny received his BSc in Physics from the University of Madras and MSc in Physics from Mahatma Gandhi University, India. His previous research work involved laser-produced plasmas and optical nonlinearity studies of organic materials.

Technical Staff

Jan Dittrich

Office: 006
Email: jan.dittrich(at)
Phone number: +49 (0)381 498-6807
Fax number: +49(0)381 498-6802