Research Output per year
Personal profile
Research profile
Wilbert IJzerman is a Full Professor and Chair of Illumination Optics at Eindhoven University of Technology (TU/e). The TU/e Scientific Computing and Applications team (CASA), which he leads with dr.ir. Jan ten Thije Boonkkamp. They work on the mathematical-physical description and numerical simulation of illumination systems related to:
- The inverse optical problem. In the optical forward problem, the target distribution is calculated by ray tracing. In the inverse problem, the shape of the optical components is calculated directly given the source and target distribution. CASA aims to solve the inverse optical problem for more complex (industry-relevant) optical configurations that consist of more than one or two optical surfaces. In addition, CASA would like to find other solutions than current convex and concave solutions and to integrate the inverse approach with scattering surfaces.
- Improved optical simulation tools. A method based on Hamiltonian optics using the Liouville equation has significant speed advantages and will be developed further in the TTW Perspective Program ‘Free-Shape Scattering Optics’. CASA will extend the developed method to 3D and prove the applicability to practical problems.
The group’s work has resulted in a new versatile algorithm for mass transport problems that may be solved for arbitrary cost functions as well as improved ray tracing methods that are 1000x faster and 100x more accurate than current state-of-the-art methods.
Academic background
After finishing his MSc in applied physics in 1995 and MSc in applied mathematics in 1996 Wilbert obtained his PhD in applied mathematics in 2000, all at the University of Twente.
He completed his executive MBA at Rotterdam School of Management in 2011
In addition to his activities at CASA, Prof. IJzerman guides some PhD students on characterization of optical components and the design of scattering materials at the department of Applied Physics at TU/e. He is also the head of the sector Lighting Technology at Signify Research. In this role he is responsible for the long-term technology roadmap and execution thereof for all lighting products. He is (co-)author of over 50 granted US patents. Wilbert is also a Member of the Industrial Advisory Committee of the European Optical Society.
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Research Output
Inverse reflector design for a point source and far-field target
Romijn, L. B., ten Thije Boonkkamp, J. H. M. & IJzerman, W. L., 1 May 2020, In : Journal of Computational Physics. 408, 23 p., 109283.Research output: Contribution to journal › Article › Academic › peer-review
Transition from ambipolar to free diffusion in an EUV-induced argon plasma
Platier, B., Limpens, R., Lassise, A. C., Staps, T. J. A., van Ninhuijs, M. A. W., Daamen, K. A., Luiten, O. J., IJzerman, W. L. & Beckers, J., 9 Mar 2020, In : Applied Physics Letters. 116, 10, 4 p., 103703.Research output: Contribution to journal › Article › Academic › peer-review
Open Access
File
Active flux schemes on moving meshes with applications to geometric optics
van Lith, B. S., ten Thije Boonkkamp, J. & IJzerman, W., 4 Apr 2019, In : Journal of Computational Physics: X. 3, 19 p., 100030.Research output: Contribution to journal › Article › Academic › peer-review
Open Access
File
A least-squares method for a Monge-Ampère equation with non-quadratic cost function applied to optical design
Yadav, N. K., ten Thije Boonkkamp, J. H. M. & IJzerman, W. L., 1 Jan 2019, Numerical Mathematics and Advanced Applications ENUMATH 2017. Radu, F. A., Kumar, K., Berre, I., Nordbotten, J. M. & Pop, I. S. (eds.). Cham: Springer, p. 301-309 9 p. (Lecture Notes in Computational Science and Engineering; vol. 126).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
A least-squares method for the design of two-reflector optical systems
Yadav, N., Romijn, L., ten Thije Boonkkamp, J. & IJzerman, W., 2019, In : JPhys Photonics. 1, 16 p., 034001.Research output: Contribution to journal › Article › Academic › peer-review
Open Access
File
Press / Media
Fast design of a led with the right shade of white
21/10/19
1 item of Media coverage
Press/Media: Expert Comment
Tracing the Light Inside LEDs Higher Efficiency
14/09/17
1 item of Media coverage
Press/Media: Expert Comment
What if we are measuring light improperly?
2/03/16
1 item of Media coverage
Press/Media: Expert Comment
Student theses
Fast ray tracing in phase space for optical design
Author: Portegies, J., 31 Jan 2014Supervisor: ten Thije Boonkkamp, J. (Supervisor 1), IJzerman, W. (External coach) & Tukker, T. (External coach)
Student thesis: Master
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Inverse design of cylindrically symmetric reflector with scattering surfaces
Author: Jiang, S., 31 Aug 2017Supervisor: ten Thije Boonkkamp, J. (Supervisor 1) & IJzerman, W. (Supervisor 2)
Student thesis: Master
File
Least-squares method for the Monge-Ampère equation with application to calculating lens surfaces in optical systems
Author: Bertens, M., 18 Dec 2017Supervisor: IJzerman, W. (Supervisor 1) & ten Thije Boonkkamp, J. (Supervisor 2)
Student thesis: Master
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Numerical models of light scattering in a dusty plasma
Author: Bertens, M., 2016Supervisor: IJzerman, W. (Supervisor 1), Beckers, J. (Supervisor 2) & Schepers, L. (Supervisor 2)
Student thesis: Bachelor
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Ray-optics analysis of switchable auto-stereoscopic lenticular-based 2D/3D displays
Author: Sluijter, M., 31 Dec 2005Supervisor: IJzerman, W. (Supervisor 1), de Boer, D. (Supervisor 2) & Kroesen, G. (Supervisor 2)
Student thesis: Master
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