38 citations · 154 across the 28 of their papers we have counts for
23 papers · 1 filter
Direct Optimization of a 3D Finite-Source Reflector via Neural-Network Parameterization
Roel Hacking, Lisa Kusch, Martijn Anthonissen +1
We present a direct optimization method for three-dimensional freeform reflectors that transform the light of a finite-étendue source into a prescribed far-field angular intensity…
An inverse design method for generalized zero-étendue sources and two targets
Pieter Braam, Jan ten Thije Boonkkamp, Martijn Anthonissen +3
We present an inverse method to compute freeform optical surfaces that transform a light distribution, parameterized by two source planes, into two separate target distributions. T…
Design of a three-dimensional parallel-to-point imaging system based on inverse methods
Sanjana Verma, Lisa Kusch, Koondanibha Mitra +3
We present an inverse method for designing a three-dimensional imaging system comprising of freeform optical surfaces. We impose an imaging condition on the optical map and combine…
An Inverse Method for the Design of Freeform Double-Reflector Imaging Systems
Sanjana Verma, Lisa Kusch, Martijn J. H. Anthonissen +2
We propose an inverse method to design two-dimensional freeform imaging systems. We present the mathematical model to design a parallel-to-point double-reflector imaging system usi…
Inverse freeform design of a parallel-to-two-target reflector system
Pieter Braam, Jan ten Thije Boonkkamp, Martijn Anthonissen +3
We present an inverse method for transforming a given parallel light emittance to two light distributions at different parallel target planes using two freeform reflectors. The ref…
Inverse methods for freeform optical design
J. H. M. ten Thije Boonkkamp, K. Mitra, M. J. H. Anthonissen +3
We present a systematic derivation of three mathematical models of increasing complexity for optical design, based on Hamilton's characteristic functions and conservation of lumino…
A mathematical model for inverse freeform design of a point-to-point two-reflector system
P. A. Braam, J. H. M. ten Thije Boonkkamp, M. J. H. Anthonissen +2
In this paper, we discuss a mathematical model for inverse freeform design of an optical system with two reflectors in which light transfers from a point source to a point target.…
Three-Dimensional Freeform Reflector Design with a Microfacet Surface Roughness Model
Vì Kronberg, Martijn Anthonissen, Jan ten Thije Boonkkamp +1
This manuscript will unify inverse freeform reflector design and surface light scattering to design freeform reflectors with a scattering surface. We use microfacets, which are sma…
Concatenated Backward Ray Mapping on the Compound Parabolic Concentrator
Willem Jansen, Martijn Anthonissen, Jan ten Thije Boonkkamp +1
Concatenated backward ray mapping is an alternative for ray tracing in 2D. It is based on the phase-space description of an optical system. Phase space is the set of position and d…
Design of two-dimensional reflective imaging systems: An approach based on inverse methods
Sanjana Verma, Martijn J. H. Anthonissen, Jan H. M. ten Thije Boonkkamp +1
Imaging systems are inherently prone to aberrations. We present an optimization method to design two-dimensional freeform reflectors that minimize aberrations for various parallel…
Wavefront shaping through a free-form scattering object
Alfredo Rates, Ad Lagendijk, Aurèle J. L. Adam +2
Wavefront shaping is a technique to study and control light transport inside scattering media. Wavefront shaping is considered to be applicable to any complex material, yet in most…
Three-Dimensional Freeform Reflector Design with a Scattering Surface
Vì Kronberg, Martijn Anthonissen, Jan ten Thije Boonkkamp +1
We introduce a novel approach to calculating three-dimensional freeform reflectors with a scattering surface. Our method is based on optimal transport and utilizes a Fredholm integ…
Computing aberration coefficients for plane-symmetric reflective systems: A Lie algebraic approach
A. Barion, M. J. H. Anthonissen, J. H. M. ten Thije Boonkkamp +1
We apply the Lie algebraic method to reflecting optical systems with plane-symmetric freeform mirrors. Using analytical ray-tracing equations we construct an optical map. The expan…
Two-Dimensional Freeform Reflector Design with a Scattering Surface
Vì Kronberg, Martijn Anthonissen, Jan ten Thije Boonkkamp +1
We combine two-dimensional freeform reflector design with a scattering surface modelled using microfacets, i.e., small specular surfaces representing surface roughness. The model r…
Enhanced Secrecy in Optical Communication using Speckle from Multiple Scattering Layers
Alfredo Rates, Joris Vrehen, Bert Mulder +2
We study the secrecy of an optical communication system with two scattering layers, to hide both the sender and receiver, by measuring the correlation of the intermediate speckle g…
Alternative computation of the Seidel aberration coefficients using the Lie algebraic method
A. Barion, M. J. H. Anthonissen, J. H. M. ten Thije Boonkkamp +1
We give a brief introduction to Hamiltonian optics and Lie algebraic methods. We use these methods to describe the operators governing light propagation, refraction and reflection…
Fresnel reflections in inverse freeform lens design
A. H. van Roosmalen, M. J. H. Anthonissen, W. L. IJzerman +1
In this paper we propose a method to design a freeform lens including the effect of Fresnel reflections on the transmitted intensity. This method is elaborated for a lens with one…
Modelling Surface Light Scattering in the Context of Freeform Optical Design
Vì C. E. Kronberg, Martijn J. H. Anthonissen, Jan H. M. ten Thije Boonkkamp +1
We present a novel approach of modelling surface light scattering in the context of freeform optical design. The model relies on energy conservation and optimal transport theory. F…
Design of a freeform two-reflector system to collimate and shape a point source distribution
A. H. van Roosmalen, M. J. H. Anthonissen, W. L. IJzerman +1
In this paper we propose a method to compute a freeform reflector system for collimating and shaping a beam from a point source. We construct these reflectors such that the radiant…
Systematic design of the color point of a white LED
Maryna L. Meretska, Gilles Vissenberg, Ad Lagendijk +2
Lighting is a crucial technology that is used every day. The introduction of the white light emitting diode (LED) that consists of a blue LED combined with a phosphor layer, greatl…
Analytical modeling of light transport in scattering materials with strong absorption
M. L. Meretska, R. Uppu, G. Vissenberg +3
We have investigated the transport of light through slabs that both scatter and strongly absorb, a situation that occurs in diverse application fields ranging from biomedical optic…
How to distinguish elastically scattered light from Stokes shifted light for solid-state lighting?
M. Meretska, A. Lagendijk, H. Thyrrestrup +3
We have studied the transport of light through phosphor diffuser plates that are used in commercial solid-state lighting modules (Fortimo). These polymer plates contain $\mathrm{YA…
Interplay between multiple scattering, emission, and absorption of light in the phosphor of a white light-emitting diode
V. Y. F. Leung, A. Lagendijk, T. W. Tukker +3
We study light transport in phosphor plates of white light-emitting diodes (LEDs). We measure the broadband diffuse transmission through phosphor plates of varying YAG:Ce de…