David Marpaung

professor, group leader

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

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Photo David Marpaung_March_2020

David Marpaung is a professor leading the Nonlinear Nanophotonics group. He is the co-chairholder of 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.

radius suryadharma

postdoctoral researcher

Radius_in_DinoRadius joined the University of Twente in December 2019 as a postdoctoral researcher working on nonlinear phononics.

He received his Ph.D. degree in physics from Karlsruhe Institute of Technology, Germany, in 2019. His previous research include: multiple scattering theory, optical biosensing device and photonic crystal.

His research interests include photonic integration, nonlinear optics and scattering theory.

Roel Botter

PhD student

Roel BotterRoel Botter joins 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

PhD student


Okky Daulay joins the group as a PhD student in January 2019. 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.

Gaojian Liu

PhD student


Gaojian Liu joins the group as a CSC visiting PhD student in October 2019. He is currently a PhD student in China Academy of Space Technology (Xi’an). His previous research included millimeter wave mixer and microwave photonics filter.
He received his MSc degree in electromagnetic field and microwave technology from China Academy of Space Technology (Xi’an) in 2017 and BEng degree in electronic information engineering from Zhejiang University in 2014. His research interests include millimeter wave circuit and system and microwave photonics signal processing.
In daily life, he enjoys swimming and running, and has run two half-marathon.

Yvan Klaver

PhD student


Yvan Klaver will formally join the group in June 2020 as a PhD student working on Nonlinear Phononics and Frequency Combs. He is currently doing his internship with LioniX International. His MSc thesis is focused  on microresonator Kerr optical frequency combs. .

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.

Tara van Abkoude

Master student


Tara van Abkoude is currently a master student in Electrical Engineering at University of Twente since December 2018.

She graduated her bachelors on the subject of integrated trans-impedance amplifier for analog microwave photonic links in collaboration with the company LioniX International.

The integration of photonics and electronics in the telecommunication field is what drives her as well as organizing events, sports, music and entrepreneurship.

Maarten eijkel

Master student

Maarten_EijkelMaarten Eijkel is currently a master student in Applied Physics
at the University of Twente since September 2018.

In the summer of 2018 he received his bachelors degree in Applied Physics on  an assignment in the field of quantum optics where he worked on building an experimental setup capable of violating Bell’s inequalities.

His interests include microwave photonics, making music and all types of (board) games.


Master student

Max_KiewietMax Kiewiet is a master student in Applied Physics at the University of Twente since September 2018.

He graduated his bachelors with his thesis about microbubble generation for medical acoustic sensing and has since made the switch towards nonlinear optics and microphotonics. In this field, he studies microwave filter creation using Stimulated Brillouin Scattering.

Besides his interest in microwave photonics, Max is interested in playing and coaching field hockey, hiking, and playing classical guitar.

Bjorn Jongebloed

Bachelor student

Bjorn will join the group in April 2020 working on the noise and linearity of SBS amplifiers.