Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Patrice Twardowski"'
Publikováno v:
Technologies, Vol 10, Iss 5, p 101 (2022)
Angular and spectral separations of thermal radiation have become a key challenge in solar concentration or thermal management of sources radiating at extremely high or low temperatures. Reflections obtained from electromagnetic theory in an open cav
Externí odkaz:
https://doaj.org/article/95182b8cf95d4c89abafb3cc60ebdddf
Autor:
Valter Drazic, Oksana Shramkova, Bobin Varghese, Laurent Blondé, Vincent Brac De La Perrière, Jesse Schiffler, Patrice Twardowski, Sylvain Lecler, Benjamin Walter, Estelle Mairiaux, Fuanki Bavedila, Marc Faucher, Valérie Allié
Publikováno v:
Optics Express
Optics Express, 2022, 30 (2), pp.1293-1303. ⟨10.1364/OE.446077⟩
Optics Express, 2022, 30 (2), pp.1293-1303. ⟨10.1364/OE.446077⟩
International audience; Waveguide based optical combiners for augmented reality (AR) glasses are integrating several surface relief gratings (SRG) whose pitch sizes can be as small as 200 nm for the blue wavelength. All SRG components exploit the fir
Autor:
Jean Dellinger, Hongyu Li, Patrice Twardowski, Jihad Zallat, Anastasia Bozhok, Yoshitate Takakura
Publikováno v:
Optical Engineering
Optical Engineering, SPIE, 2020, 59 (8), ⟨10.1117/1.OE.59.8.083104⟩
Optical Engineering, 2020, 59 (8), ⟨10.1117/1.OE.59.8.083104⟩
Optical Engineering, SPIE, 2020, 59 (8), ⟨10.1117/1.OE.59.8.083104⟩
Optical Engineering, 2020, 59 (8), ⟨10.1117/1.OE.59.8.083104⟩
Lensless inline digital holographic microscopy (LI-DHM) and Fourier ptychographic microscopy (FPM) are two widespread quantitative phase imaging (QPI) techniques. They have been employed in various fields, especially for biological slice imaging beca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22bda74721c28a6b59f2143c514ad49d
https://hal.archives-ouvertes.fr/hal-03245653
https://hal.archives-ouvertes.fr/hal-03245653
Autor:
Yoshi Takakura, Charles Beudy, Pierre Pfeiffer, Sylvain Lecler, Grégoire Chabrol, Patrice Twardowski, Julien Zelgowski, Joël Fontaine
Publikováno v:
Materials Today: Proceedings. 4:S62-S67
This paper reviews the substantial body of work done by the Instrumentation and Photonic Processes (IPP) research team within the ICube laboratory on photonic jets emerging from shaped fibre tips. The concentration of the laser light in the vicinity
Publikováno v:
Applied optics
Applied optics, 2018, 57 (19), pp.5281-5287. ⟨10.1364/AO.57.005281⟩
Applied Optics
Applied Optics, Optical Society of America, 2018, 57 (19), pp.5281-5287. ⟨10.1364/AO.57.005281⟩
Applied optics, 2018, 57 (19), pp.5281-5287. ⟨10.1364/AO.57.005281⟩
Applied Optics
Applied Optics, Optical Society of America, 2018, 57 (19), pp.5281-5287. ⟨10.1364/AO.57.005281⟩
In this paper, we present a detailed and rigorous study of cylindrical harmonic Fresnel lenses (HFLs) using the finite difference time domain method (FDTD) and angular spectrum method (ASM). The HFL is a kind of diffractive lens that can have maximum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a44b7e4a5b2644c31d7c671ac335b78
https://www.osapublishing.org/abstract.cfm?URI=ao-57-19-5281
https://www.osapublishing.org/abstract.cfm?URI=ao-57-19-5281
Autor:
Jianming, Yang, Patrice, Twardowski, Philippe, Gérard, Yi, Duo, Joël, Fontaine, Sylvain, Lecler
Publikováno v:
Optics express. 26(4)
A glass cuboid, embedded inside a dielectric cylinder is studied when illuminated with a monochromatic plane wave. A photonic nanojet (PNJ) with a full-width at half-maximum (FWHM) waist of around 0.25λ
Publikováno v:
Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2016, 41 (23), pp.5426-5429. ⟨10.1364/OL.41.005426⟩
Optics Letters, 2016, 41 (23), pp.5426-5429. ⟨10.1364/OL.41.005426⟩
Optics Letters, Optical Society of America-OSA Publishing, 2016, 41 (23), pp.5426-5429. ⟨10.1364/OL.41.005426⟩
Optics Letters, 2016, 41 (23), pp.5426-5429. ⟨10.1364/OL.41.005426⟩
International audience; A novel waveguide near to eye display (WGNED), with new in-coupling and propagation subsystems, is proposed for the first time, to our knowledge, to enlarge the vertical field-of-view (FOV) and the vertical size of the eye box
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0163f8f9579758563f21b7e8b75c01fe
https://hal.archives-ouvertes.fr/hal-02064485/file/islandora_71053.pdf
https://hal.archives-ouvertes.fr/hal-02064485/file/islandora_71053.pdf
Publikováno v:
Optics, Photonics and Digital Technologies for Imaging Applications IV
SPIE Photonics Europe, 2016
SPIE Photonics Europe, 2016, Apr 2016, Bruxelles, Belgium. ⟨10.1117/12.2227383⟩
SPIE Photonics Europe, 2016
SPIE Photonics Europe, 2016, Apr 2016, Bruxelles, Belgium. ⟨10.1117/12.2227383⟩
International audience; We propose a new kind of waveguide near eye display (WGNED) with new in-coupling and propagation subsystems to vertically enlarge the field-of-view (FOV). Two waveguides are stacked up with a 0.1 mm air gap so that light can p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c2a24b9a36f6b589bc3766d515bcc87
https://hal.science/hal-02373352
https://hal.science/hal-02373352
Autor:
Manuel Flury, Sylvain Lecler, Patrice Twardowski, Pierre Pfeiffer, Adline Ciceron, Grégoire R. Chabrol, Frédéric Mermet
Publikováno v:
Applied Surface Science
Applied Surface Science, Elsevier, 2016, 374, pp.375-378. ⟨10.1016/j.apsusc.2016.01.079⟩
Applied Surface Science, 2016, 374, pp.375-378. ⟨10.1016/j.apsusc.2016.01.079⟩
Applied Surface Science, Elsevier, 2016, 374, pp.375-378. ⟨10.1016/j.apsusc.2016.01.079⟩
Applied Surface Science, 2016, 374, pp.375-378. ⟨10.1016/j.apsusc.2016.01.079⟩
International audience; This paper presents an explorative study on the machining of diffractive optical elements (DOEs) in transparent materials using a femtosecond laser source. A simple form of DOE, a binary phase grating with a period of 20.85 μ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cacf0c2f026470aabf9e1408029e050
https://hal.archives-ouvertes.fr/hal-02379924
https://hal.archives-ouvertes.fr/hal-02379924
Publikováno v:
Optical Engineering
Optical Engineering, SPIE, 2015, 54 (3), pp.034102. ⟨10.1117/1.OE.54.3.034102⟩
Optical Engineering, 2015, 54 (3), pp.034102. ⟨10.1117/1.OE.54.3.034102⟩
Optical Engineering, SPIE, 2015, 54 (3), pp.034102. ⟨10.1117/1.OE.54.3.034102⟩
Optical Engineering, 2015, 54 (3), pp.034102. ⟨10.1117/1.OE.54.3.034102⟩
The processing of structured light images in real time is a challenging task for the development of three-dimensional (3-D) shape measurement methods. This paper presents a high speed and low-cost optical profiler implemented using a projection metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9efd4c8cc5fd4ea60cc408999ad9265