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prof.dr. W.L. Vos (Willem)

Full Professor

About Me

Willem Vos obtained a Ph.D. in physics at the University of Amsterdam with highest honors (cum laude) for his thesis “Phase behavior of simple systems at high pressure”. He held a prestigious Fellowship at the Geophysical Laboratory (Carnegie Institution for Science, USA) where he discovered a novel class of "van der Waals compounds" at very high pressures. He then studied photonic crystal and colloid physics. His team developed “inverse opal” photonic crystals; their Science paper inspired many groups (>1350 citations). Since 2002 he is professor in Complex Photonic Systems (COPS), University of Twente. His team demonstrated the first ever control of spontaneous emission of light with a 3D photonic band gap. Vos is Fellow of the APS and the OSA, recipient of the Snellius medal and the Descartes-Huygens prize. He is currently collaborating with both major high-tech industries and with SMEs, in order to put his group's know-how to use by solving practical problems. His papers are on average cited >40x. His students have become faculty members at leading institutes, or pursue careers in major industries and non-profit organizations.

See on the web: https://nano-cops.com/

Expertise

Physics & Astronomy
# Cavities
# Crystals
# Photonics
Engineering & Materials Science
# Crystals
# Nanophotonics
# Photonic Band Gap
# Photonic Crystals
# Photonics

Organisations

Ancillary Activities

  • Quix
    Advies & aandeelhouder

Publications

Recent
Vreman, T. J., van den Oudenrijn, J. , Goodwin, M. J. , Lagendijk, A. , & Vos, W. L. (2024). Enhanced Spontaneous Emission of PbS Quantum Dots in 3D Photonic Band Gap Crystals. Poster session presented at NWO Physics 2024, Veldhoven, Netherlands.
Corbijn van Willenswaard, L. J., Smeets, S., Renaud, N. , Schlottbom, M. , Vos, W. L. , & van der Vegt, J. J. W. (2023). Computation of Optical Properties of Real Photonic Band Gap Crystals as Opposed to Utopian Ones. Poster session presented at CLEO/Europe-EQEC 2023, Munich, Germany.
Akdemir, O., Bitenc, L., L Maxwell, I. , Goodwin, M. J., Truong, M. D. , Lagendijk, A. , & Vos, W. L. (2023). Probing the Position Resolved Energy Density Inside Photonic Scattering Slabs with Strong Absorption and Anisotropy. Poster session presented at NWO Physics 2023, Veldhoven, Netherlands.
Akdemir, O., Bitenc, L., L Maxwell, I. , Goodwin, M. , Truong, M. D. , Lagendijk, A. , & Vos, W. L. (2023). Probing the Position Resolved Energy Density Inside Photonic Scattering Slabs with Strong Absorption and Anisotropy. In 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 IEEE. https://doi.org/10.1109/CLEO/EUROPE-EQEC57999.2023.10232580
Kozoň, M. , Schlottbom, M. , van der Vegt, J. J. W. , & Vos, W. L. (2023). Photon Confinement in 3D Photonic Band Gap Superlattices. In 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 (2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023). IEEE. https://doi.org/10.1109/CLEO/EUROPE-EQEC57999.2023.10231579
Rates, A., Vrehen, J., Mulder, B. L. , IJzerman, W. L. , & Vos, W. L. (2023). Multiple Scattering Layers As Physical Unclonable Functions For Optical Wireless Communication. In 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 (2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023). IEEE. https://doi.org/10.1109/CLEO/EUROPE-EQEC57999.2023.10231393
Kozoň, M. , Lagendijk, A. , Schlottbom, M. , van der Vegt, J. J. W. , & Vos, W. L. (2023). Scaling Theory of Wave Confinement in Classical and Quantum Periodic Systems. In 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 (2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023). IEEE. https://doi.org/10.1109/CLEO/EUROPE-EQEC57999.2023.10232298
Takahashi, S., Tajiri, T., Arakawa, Y., Iwamoto, S. , & Vos, W. L. (2023). Optical properties of chiral three-dimensional photonic crystals. Physical Review B, 107(16), Article 165307. https://doi.org/10.1103/PhysRevB.107.165307
Corbijn van Willenswaard, L. J., Smeets, S., Renaud, N. , Schlottbom, M. , van der Vegt, J. J. W. , & Vos, W. L. (2023). Calculations of Real Photonic Band Gap Crystals as Opposed to Utopian Ones. Poster session presented at PECS-XIII, Tokyo, Japan.
Goodwin, M. J. , Harteveld, C. A. M., Corbijn van Willenswaard, L. J. , Vreman, T. J., Schulz, A. S. , Grishina, D. , & Vos, W. L. (2023). Fabrication of 3D Photonic Band Gap Crystals from Silicon. In 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) https://opg.optica.org/abstract.cfm?uri=CLEO_Europe-2023-ck_p_33
Goodwin, M. J. , Akdemir, O. , Truong, M. D., Bitnec, L. , Lagendijk, A. , & Vos, W. L. (2023). Photonic Energy Density and Scattering from Random and Periodic Arrays of Silicon Pillars. In 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Willenswaard, L. J. C. V., Smeets, S., Renaud, N. , Schlottbom, M. , Vos, W. L. , & Vegt, J. J. W. V. D. (2023). Computation of Optical Properties of Real Photonic Band Gap Crystals as Opposed to Utopian Ones. In 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Article 10232742 IEEE. https://doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10232742
Vreman, T. J., van den Oudenrijn, J. , Goodwin, M. J. , Rates, A. , Akdemir, O., Mulder, B. L. , Schulz, A. S., F. L. Alferink, N., Corbijn van Willenswaard, L. J., Kamphuis, G. J. , Harteveld, C. A. M., Takahashi, S. , Lagendijk, A. , & Vos, W. L. (2023). Spontaneous Emission of PbS Quantum Dots Controlled by Silicon Photonic Band Gap Crystals. Poster session presented at MESA+ Meeting 2023, Enschede, Netherlands.
Rates, A. (2023). Transparency, Secrecy, and Profiling using Mutual Scattering in Complex Media. [PhD Thesis - Research UT, graduation UT, University of Twente]. University of Twente. https://doi.org/10.3990/1.9789036558501

UT Research Information System

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Google Scholar Link

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Education

In education, it is ultimately my goal to challenge (in Dutch: uitdagen) students by - in an ideal setting - asking questions that have not been answered before. Of course, finding an answer - or even the approach to an answer, or even more basically whether the question is answerable at all - will become a joint adventure that is approached with lots of discussions in the beginning (what path shall we try first?), during the project (are we going in a right direction?), or at the end (do we explain things clearly to colleagues?)
While such an approach does not eschew "high risk and high gain", it often leads to the most exhilarating experiences. And not to worry, COPS seniors are always on board to join the ride (even when it gets bumpy at times), so: shared sorry & shared happiness!
Drop by for a discussion, and just so you know: we have got the best coffee on campus!

 

Affiliated Study Programmes

Bachelor

Master

Other

Courses Academic Year  2023/2024

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.
 

Courses Academic Year  2022/2023

Projects

I am leading ("PI") several major research programs in close collaboration with high-tech industry:

NWO-TTW Perspectief program "Advanced Wave Engineering for Sustainable Optical Applications (AWAVE)" (jointly with Nandini Bhattacharya from TUD), 2024-2030, see https://www.utwente.nl/en/news/2023/12/1279316/second-year-in-a-row-big-perspectief-programme-for-willem-vos

NWO-TTW Perspectief program "Optical coherence; optimal delivery and positioning (OPTIC)", 2023-2029, see https://www.utwente.nl/en/news/2022/12/370068/46-million-euros-for-ut-research-on-light-conduction

NWO-TTW Perspectief program "Freeform scattering optics (FFSO)", 2016-2023, see: https://www.freeformscatteringoptics.com/

FOM open program "Stirring of Light!", 2011-2016

 

Media

COPS YouTube channel: https://www.youtube.com/@nanocops/videos

COPS 20th anniversary (in 2022): https://www.youtube.com/watch?v=iCWY5-Juebk

COPS on the 8 o'clock prime time news, aka NOS 8-uur journaal: https://www.youtube.com/watch?v=nR4tIaYUFBY

New York Times, Science Watch "A van der Waals solid", July 7, 1992, see: https://www.nytimes.com/1992/07/07/science/science-watch-a-van-der-waals-solid.html


Tweets

Contact Details

+31534895390  (secretary)
+31534895390  (if no answer)
 
 

Visiting Address

University of Twente
Faculty of Science and Technology
Horst Complex (building no. 20), room ME117
De Horst 2
7522LW  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Science and Technology
Horst Complex  ME117
P.O. Box 217
7500 AE Enschede
The Netherlands

Organisations

Social Media

University of Twente Drienerlolaan 5
7522 NB Enschede
+31 (0)53 489 9111
info@utwente.nl
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