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Publications associées (20)
Tuning the Solar Performance of Building Facades through Polymer 3D Printing: Toward Bespoke Thermo-Optical Properties
Stephen William Wasilewski, Arno Schlueter
Facades are the primary interface controlling the flow of solar energy in buildings and affecting their energy balance and environmental impact. Recently, large-scale 3D printing (3DP) of translucent polymers has been explored as a technique for fabricatin ...
WILEY2023High-Resolution Multi-Spectral Imaging With Diffractive Lenses and Learned Reconstruction
Oguzhan Fatih Kar, Can Deniz Bezek
Spectral imaging is a fundamental diagnostic technique with widespread application. Conventional spectral imaging approaches have intrinsic limitations on spatial and spectral resolutions due to the physical components they rely on. To overcome these physi ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021Ultrasound Imaging: From Physical Modeling to Deep Learning
Among the medical imaging modalities, ultrasound (US) imaging is one of the safest, most widespread, and least expensive method used in medical diagnosis. In the past decades, several technological advances enabled the advent of ultrafast US imaging, an ac ...
EPFL2021Koehler integrator device and application thereof in a multi-focal confocal microscope
Suliana Manley, Kyle Michael Douglass, Dora Mahecic
A Koehler integrator device (10) comprises a collimating lens (11) being arranged for collimating a light field created by an incoherent or partially coherent light source, a pair of planar first and second micro-lens arrays (12, 13) being arranged for rel ...
2020Light pattern generation with hybrid refractive microoptics under Gaussian beam illumination
The generation of wide-angle diffraction patterns can be done in different ways using either thin diffractive optical elements with small features sizes or arrays of microoptics with large optical paths that are thick diffractive optical elements. Our aim ...
OPTICAL SOC AMER2020Simulation of microoptics under inhomogeneous illumination: Sinusoidal Phase Grating under Gaussian Beam Illumination
Far field pattern generation is investigated for thick sinusoidal phase grating under a Gaussian beam illumination to obtain a high field of view. We compare the Fraunhofer approximation with the High-NA propagator and demonstrate that the Fraunhofer appro ...
IEEE2019Binary zero-order diffractive and anti-reflective optical elements in silicon for the mid-infrared
Hans Peter Herzig, Grégoire Maxime Smolik
We propose a novel method for the design of binary 2-level diffractive optical elements that provide an efficient diffractive function while reducing the reflectivity of a high-index interface. The structure can be fabricated with a single patterning step ...
Optical Society of America2017Influence of reflecting walls on edge diffraction simulation in geometrical acoustics
Edge diffraction can be introduced into Geometrical Acoustics mainly by three models: detour-based, energetic and wave-based diffraction models. In the past, we thoroughly compared Maekawa's detour law, the uncertainty relation based diffraction method and ...
Acoustical Society of America2013Dynamically deformable reflective membrane for laser beam shaping and smoothing
Nico de Rooij, Roland Andreas Bitterli, Jonathan Masson, Wilfried Noell
We show a laser beam shaping device made of a deformable continuous reflective membrane fabricated over a scanning stage. The combination of two actuator schemes enables shaping and smoothing of a laser beam with a unique compact device. It is designed to ...
Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012Generation of a high depth of focus with constant transversal spot size using a phase-only pupil filter
Pramod Rastogi, Daniel Iwaniuk
A novel approach is proposed to obtain an extended depth of focus (DoF) in white light with constant transversal spot size within the DoF. It combines a phase-only pupil filter based on multiplexed radial zones with alternating quartic phase functions. The ...
Taylor & Francis2010