David Marpaung

Associate professor, group leader

Meander room 127, phone: +31 53 489 7925,

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David Marpaung

David Marpaung joined the University of Twente in January 2018 as an associate professor leading the Nonlinear Nanophotonics group within the Laser Physics and Nonlinear Optics chair.

David received his Ph.D. degree in electrical engineering from the University of Twente, the Netherlands in 2009. From 2009 to 2012 he was a postdoctoral researcher in the University of Twente, working on microwave photonic system integration for optical beamforming. He joined CUDOS University of Sydney, Australia in August 2012 as a research fellow. From 2015 to 2017 he was a senior research fellow leading the nonlinear integrated microwave photonics research activities in CUDOS University of Sydney.

David was the recipient of the 2015 Discovery Early Career Research Award (DECRA) from the Australian Research Council and the 2017 Vidi award from the Netherlands Organisation for Scientific Research (NWO).

His research interests include RF photonics, photonic integration, nonlinear optics, and phononics.

Roel Botter

PhD student

Roel BotterRoel Botter will join the group as a PhD student in January 2019. He is currently finishing his masters degree in Applied Physics at the Delft University of Technology. His previous research included building a frequency comb spectroscope, and looking into the possibilities of using laser speckle analysis to differentiate fluids and vessels under the influence of pulsatile flow.
Roel is currently working as an intern at ASML, where he is designing and building a setup for sensor qualification.


Okky Daulay

Internship master student


Okky Daulay joined the group as an intern master student in July 2018. He is an officer and a researcher at Indonesian Air Force Research and Development Service Electronic Division. He is responsible for research and development of Radar, Avionics, Communication and Electronic Warfare technology.

He received his MSc degree in embedded systems from the University of Twente The Netherlands in 2018 and BEng degree in electrical engineering from National Defense Academy Japan in 2009. His research interests include microwave engineering and RF photonics in all their aspects and phased-array technology.

Xin Guo

Master student

Meander room 231A,

photo-Xin Guo

Xin Guo is currently a master student in Applied Physics at University of Twente since September 2018.

He received his BSc degree in Photoelectric Information Science and Engineering from Anhui Normal University in China in June 2018, his bachelor assignment was about Laser-Induced Breakdown Spectroscopy in liquid. From February 2016 to June 2016, he was an exchange student at National University of Tainan in Taiwan.

For sports, Xin Guo is in the first team of Thibat , which is a student sport club for table tennis at University of Twente.