Concept
Photographie infrarouge
Publications associées (141)
Silicon CMOS and InGaAs(P)/InP SPADs for NIR/SWIR detection
Applications demanding imaging at low-light conditions at near-infrared (NIR) and short-wave infrared (SWIR) wavelengths, such as quantum information science, biophotonics, space imaging, and light detection and ranging (LiDAR), have accelerated the develo ...
EPFL2024Polydimethylsiloxane based soft polymer optical fibers: From the processing-property relationship to pressure sensing applications
Fabien Sorin, Khushdeep Sharma, René M. Rossi
Polydimethylsiloxane (PDMS) based soft polymer optical fibers (POFs) have recently demonstrated their intriguing potential for different sensing applications like strain or temperature sensing. Recent studies have elaborated on the sensing capability of PD ...
2023Lippmann Photography: Past, Present, and Future
Paolo Prandoni, Arnaud Latty, Adrien Guillaume Olivier Hoffet, Nicoletta Isaac
The purpose of this project was to bring to a wider public an almost forgotten technique for color photography, invented by Gabriel Lippmann in 1892 and rewarded with a Nobel prize in 1908. The project was born out of a longstanding cooperation between EPF ...
2023A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly
We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a quadruply lensed system in a cusp configuration, with a maximum image separ ...
2023Glass-in-glass infiltration for 3D micro-optical composite components
Andreas Mortensen, Yves Bellouard, Jérôme Faist, Gözden Torun, Enrico Casamenti, Luciano Borasi, Mathieu Bertrand
Chalcogenide glass exhibits a wide transmission window in the infrared range, a high refractive index, and nonlinear optical properties; however, due to its poor mechanical properties and low chemical and environmental stability, producing three-dimensiona ...
2022Resolution and penetration depth of reflection-mode time-domain near infrared optical tomography using a ToF SPAD camera
Edoardo Charbon, Martin Wolf, Jingjing Jiang
In a turbid medium such as biological tissue, near-infrared optical tomography (NIROT) can image the oxygenation, a highly relevant clinical parameter. To be an efficient diagnostic tool, NIROT has to have high spatial resolution and depth sensitivity, fas ...
Optica Publishing Group2022In vitro and in vivo NIR fluorescence lifetime imaging with a time-gated SPAD camera
Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü
Near-infrared (NIR) fluorescence lifetime imaging (FLI) provides a unique contrast mechanism to monitor biological parameters and molecular events in vivo. Single-photon avalanche diode (SPAD) cameras have been recently demonstrated in FLI microscopy (FLIM ...
Optica Publishing Group2022Evolution and spatial variability of small-scale surface roughness of snow and sea ice during MOSAiC
Michael Lehning, Marc Schneebeli Zeugin, Dávid Wágner, David Nicholas Wagner
Small-scale surface roughness (on an area of about 0.5 m x 0.5 m) affects remote sensing retrieval algorithms and radiative transfer models, yet data of snow and ice surface roughness over sea ice is scarce. Microwave emissivity, important for satellite re ...
2021