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| Open AccessSingle planar photonic chip with tailored angular transmission for multiple-order analog spatial differentiator
The authors present a planar photonic chip, which operate as a multiple-order analog spatial differentiator. It provides a route for designing fast, power-efficient, compact and low-cost devices used in edge detection and optical image processing, thus expanding the functions of standard microscopes.
- Yang Liu
- , Mingchuan Huang
- & Douguo Zhang
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| Open AccessSingle pixel imaging at megahertz switching rates via cyclic Hadamard masks
Imaging rates in single-pixel imaging has been limited by the dependence on configurable spatial light modulators. Here, the authors use cyclic Hadamard patterns coded onto a spinning mask to demonstrate dynamic imaging with rates up to 72 frames per second and real time reconstruction capabilities.
- Evgeny Hahamovich
- , Sagi Monin
- & Amir Rosenthal
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Article
| Open AccessA versatile and customizable low-cost 3D-printed open standard for microscopic imaging
Open standard microscopy is urgently needed to give low-cost solutions to researchers and to overcome the reproducibility crisis in science. Here the authors present a 3D-printed, open-source modular microscopy toolbox UC2 (You. See. Too.) for a few hundred Euros.
- Benedict Diederich
- , René Lachmann
- & Rainer Heintzmann
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Article
| Open AccessPlasmonic nano-aperture label-free imaging (PANORAMA)
Here, the authors report on an imaging method based on localized surface plasmon resonance excitation, employing gold nanodisk arrays as substrates that enable imaging of transparent dielectric particles of several sizes. They demonstrate the ability to detect and image particles smaller than the diffraction limit at 25 nm with standard bright-field imaging.
- Nareg Ohannesian
- , Ibrahim Misbah
- & Wei-Chuan Shih