Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Yann Guimond"'
Autor:
Claire Fourmentin, Xiang-Hua Zhang, Enora Lavanant, Thierry Pain, Mathieu Rozé, Yann Guimond, Francis Gouttefangeas, Laurent Calvez
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Abstract In order to decrease the number of lenses and the weight of thermal imaging devices, specific optical design are required by using gradient refractive index (GRIN) elements transparent in the infrared waveband. While widely used for making v
Externí odkaz:
https://doaj.org/article/1c315ce8ecb648f59fd8e91fabebc02b
Autor:
Antoine Bréhaut, T. Hingant, Raphaël Proux, John Franks, Mathieu Rozé, Laurent Calvez, Xianghua Zhang, Pol Briantais, Yann Guimond, Petr Němec
Publikováno v:
Advanced Optics for Imaging Applications: UV through LWIR VI.
In this paper we present techniques for measuring efficiently the optical properties of chalcogenide glasses. In particular we discuss methods for measuring refractive index and the variation of refractive index with temperature. We then apply these
Autor:
Xianghua Zhang, Mathieu Rozé, Thierry Pain, Enora Lavanant, Laurent Calvez, Francis Gouttefangeas, Yann Guimond, Claire Fourmentin
Publikováno v:
Scientific Reports
Scientific Reports, Nature Publishing Group, 2021, 11 (1), pp.11081. ⟨10.1038/s41598-021-90626-4⟩
Scientific Reports, 2021, 11 (1), pp.11081. ⟨10.1038/s41598-021-90626-4⟩
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
Scientific Reports, Nature Publishing Group, 2021, 11 (1), pp.11081. ⟨10.1038/s41598-021-90626-4⟩
Scientific Reports, 2021, 11 (1), pp.11081. ⟨10.1038/s41598-021-90626-4⟩
Scientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
In order to decrease the number of lenses and the weight of thermal imaging devices, specific optical design are required by using gradient refractive index (GRIN) elements transparent in the infrared waveband. While widely used for making visible GR
Autor:
François Cheviré, T. Hingant, Xianghua Zhang, Yann Guimond, Mathieu Rozé, John Franks, Laurent Calvez, Enora Lavanant, Raphaël Proux
Publikováno v:
Proceedings of SPIE-Advanced Optics for Imaging Applications: UV through LWIR V
SPIE-Advanced Optics for Imaging Applications: UV through LWIR V 2020
SPIE-Advanced Optics for Imaging Applications: UV through LWIR V 2020, Apr 2020, On-line, California, United States. pp.114030B, ⟨10.1117/12.2558009⟩
Advanced Optics for Imaging Applications: UV through LWIR V
Advanced Optics for Imaging Applications: UV through LWIR V, Apr 2020, On-line, California, United States. pp.11, ⟨10.1117/12.2558009⟩
SPIE-Advanced Optics for Imaging Applications: UV through LWIR V 2020
SPIE-Advanced Optics for Imaging Applications: UV through LWIR V 2020, Apr 2020, On-line, California, United States. pp.114030B, ⟨10.1117/12.2558009⟩
Advanced Optics for Imaging Applications: UV through LWIR V
Advanced Optics for Imaging Applications: UV through LWIR V, Apr 2020, On-line, California, United States. pp.11, ⟨10.1117/12.2558009⟩
International audience; The last twenty years have seen a dramatic improvement in the performance of infrared detectors, especially those with uncooled microbolometer arrays. These make new commercial applications possible, from the Internet of thing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4042c1033fee8299c3db2afe69a8fe09
https://univ-rennes.hal.science/hal-02992006
https://univ-rennes.hal.science/hal-02992006
Autor:
François Cheviré, Enora Lavanant, Xianghua Zhang, T. Hingant, Laurent Calvez, Mathieu Rozé, Yann Guimond, Raphaël Proux
Publikováno v:
Optical Materials Express
Optical Materials Express, OSA pub, 2020, 10 (4), pp.860-867. ⟨10.1364/OME.383868⟩
Optical Materials Express, 2020, 10 (4), pp.860-867. ⟨10.1364/OME.383868⟩
Optical Materials Express, OSA pub, 2020, 10 (4), pp.860-867. ⟨10.1364/OME.383868⟩
Optical Materials Express, 2020, 10 (4), pp.860-867. ⟨10.1364/OME.383868⟩
While widely used in the visible, radial gradient refractive index (GRIN) lenses are still elusive in the IR waveband. In this paper we introduce a new method based on spatially resolved crystallization of chalcogenide glass to produce such lenses. O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d7627e668f0c6ccc988db858e9ec5e7
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02562370/document
https://hal-univ-rennes1.archives-ouvertes.fr/hal-02562370/document
Autor:
Garrett J. Coleman, Laurent Calvez, Johann Troles, Bruno Bureau, Catherine Boussard-Plédel, Sabyasachi Sen, Shuo Cui, Yann Guimond, Pierre Lucas
Publikováno v:
Journal of Chemical Physics
Journal of Chemical Physics, American Institute of Physics, 2019, 150 (1), pp.014505. ⟨10.1063/1.5054704⟩
Journal of Chemical Physics, 2019, 150 (1), pp.014505. ⟨10.1063/1.5054704⟩
Journal of Chemical Physics, American Institute of Physics, 2019, 150 (1), pp.014505. ⟨10.1063/1.5054704⟩
Journal of Chemical Physics, 2019, 150 (1), pp.014505. ⟨10.1063/1.5054704⟩
The chemical and structural homogeneity of selenide glasses produced by mechanical homogenization of the melt in a rocking furnace is investigated by Raman and Energy Dispersive Spectroscopy (EDS). Both techniques demonstrate that the glass is macros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ea265bf41cf5d4874a08d4ea8eff35c
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01997971
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01997971
Publikováno v:
Journal of Non-Crystalline Solids. :519-523
Work at Umicore IR Glass has focussed in the production of chalcogenide glasses and optics by molding. The standard glass compositions are Gasir1 with Ge22As20Se58 and Gasir2 with Ge20Sb15Se65. An industrial process has been developed to produce thes
Publikováno v:
Journal of Non-Crystalline Solids. :378-382
Sulphide glasses based upon the ternary system GeGaS were stabilised by addition of antimony. Ge20Ga5Sb10S65 samples were prepared under vacuum in fused silica ampoules, melted in a rocking furnace at 1000°C and cooled to room temperature. Their the
Autor:
Masataka Naitoh, Masahiro Suganuma, Yann Guimond, Yoshio Tange, Yoshihiko Okamura, Haruyoshi Katayama, Kenny Rogers, Masatomo Harada
Publikováno v:
SPIE Proceedings.
Chalcogenide glasses are compounded from chalcogen elements, such as sulphur, selenium, and tellurium. These glasses are applied to commercial applications, e.g., night vision, because they transmit infrared in the spectral range of 0.8-16μm. Chalco
Publikováno v:
SPIE Proceedings.
The interest in new infrared materials has grown rapidly during the last decade, one reason being the increasing cost of traditional Germanium, with in the meantime, a decrease of the cost of infrared detectors. In response to this Umicore has develo