Publication
Digital holographic microscopy for nanometric quality control of micro- optical components
Related publications (40)
QUAREP-LiMi: a community endeavor to advance quality assessment and reproducibility in light microscopy
The community-driven initiative Quality Assessment and Reproducibility for Instruments & Images in Light Microscopy (QUAREP-LiMi) wants to improve reproducibility for light microscopy image data through quality control (QC) management of instruments and im ...
2021Inverse design and demonstration of high-performance wide-angle diffractive optical elements
Diffractive optical elements are ultra-thin optical components required for constructing very compact optical 3D sensors. However, the required wide-angle diffractive 2D fan-out gratings have been elusive due to design challenges. Here, we introduce a new ...
OPTICAL SOC AMER2020Koehler 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 AMER2020Adjoint method and inverse design for diffractive beam splitters
Diffractive optical elements with a large diffraction angle require feature sizes down to sub-wavelength dimensions, which require a rigorous electromagnetic computational model for calculation. However, the computational optimization of these diffractive ...
SPIE-INT SOC OPTICAL ENGINEERING2020Diffractive Optical Elements Investigation in the Phase Domain
Toralf Scharf, Myun Sik Kim, Dong Cheon Kim, Michail Symeonidis
In this work we demonstrate the advantages of investigating diffractive optical elements in the phase domain. In this regime we can detect features that are not restrained by the diffraction limit and relate them to the geometrical and optical properties o ...
SPIE-INT SOC OPTICAL ENGINEERING2019Transmission Microsphere-Assisted Dark-Field Microscopy
Giorgio Quaranta, Stéphane Perrin, Hongyu Li
Microsphere-assisted microscopy allows the limit of the diffraction of light to overcome while being non-invasive, full-field, label-free, and easy-to-implement. However, the observation of translucent samples remains difficult using a classical bright-fie ...
WILEY-V C H VERLAG GMBH2019Diffractive small angle X-ray scattering imaging for anisotropic structures
Goran Lovric, Marco Stampanoni
Insights into the micro- and nano-architecture of materials is crucial for understanding and predicting their macroscopic behaviour. In particular, for emerging applications such as meta-materials, the micrometer scale becomes highly relevant. The micro-ar ...
20191D moiré shapes by superposed layers of micro-lenses
Jürgen Brugger, Roger Hersch, Thomas Walger, Valentin Flauraud, Théophane Besson
Two superposed layers of transparent cylindrical lenslet gratings create classical moiré fringes, when illuminated from behind. We rely on this observation to conceive special devices made of superposed lenslet gratings that produce animated moirés when th ...
2019Holographic device or imager
Christophe Moser, Manon Rostykus
The present disclosure concerns a holographic system or device comprising at least one optical guiding element (100) configured to redirect light incident from a light source (101) to a target interference plane (103), wherein the optical guiding element i ...
2018