Výsledky vyhledávání

Simple optical characterization of new high index chalcogenide glass

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b77c0d4e08e80be9254b84c9dc74a59e
https://doi.org/10.1117/12.2586076

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Radial gradient refractive index from crystallized chalcogenide glass for infrared applications

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⟩

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

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Radial gradient refractive index (GRIN) infrared lens based on spatially resolved crystallization of chalcogenide glass

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⟩

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

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The relation between uncooled arrays pixel size and optics in the long-wave infrared

Autor: Paul Vervoort, T. Hingant, John Franks

Publikováno v: Advanced Optics for Defense Applications: UV through LWIR III.

Over recent years, the pixel size of uncooled thermal detectors has kept shrinking, going from 50 μm in the last decade to 17 μm today. The latest generation of detectors, with 12 μm pixel pitch and smaller, come with a new set of challenges. In t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a952055975d1af267ccaa8479eb29d9
https://doi.org/10.1117/12.2303741

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The flower of H ibiscus trionum is both visibly and measurably iridescent

Autor: Beverley J. Glover, T. Hingant, Paula J. Rudall, Edwige Moyroud, Hannah Banks, Ullrich Steiner, Silvia Vignolini

Publikováno v: New Phytologist. 205:97-101

Summary ! Living organisms can use minute structures to manipulate the reflection of light and display colours based on interference. There has been debate in recent literature over whether the diffractive optical effects produced by epoxy replicas o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac423b0eb1c686c952250a32bc56e723
https://doi.org/10.1111/nph.12958

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Nanoscale imaging and control of domain-wall hopping with a nitrogen-vacancy center microscope

Autor: Vincent Jacques, André Thiaville, Karin Garcia, T. Hingant, Jean-Philippe Tetienne, L. Herrera Diez, Stanislas Rohart, Jean-François Roch, Dafiné Ravelosona, J.-P. Adam, Joo-Von Kim

Publikováno v: Science. 344:1366-1369

Observing jumping domain walls Domain walls, which separate regions of opposite magnetization in a ferromagnet, have rich dynamics that are difficult to characterize in small samples. Tetienne et al. imaged the magnetization of a thin ferromagnetic w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9a562020546c662851943a8bac9a40f
https://doi.org/10.1126/science.1250113

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Direct measurement of interfacial Dzyaloshinskii-Moriya interaction inX|CoFeB|MgOheterostructures with a scanning NV magnetometer(X=Ta,TaN, and W)

Autor: Jean-Philippe Tetienne, I. Gross, J.-P. Adam, Masamitsu Hayashi, Vincent Jacques, Karin Garcia, T. Hingant, Jacob Torrejon, Jean-François Roch, R. Soucaille, Stanislas Rohart, Luis Martinez, Joo-Von Kim, André Thiaville

Publikováno v: Physical Review B. 94

The Dzyaloshinskii-Moriya Interaction (DMI) has recently attracted considerable interest owing to its fundamental role in the stabilization of chiral spin textures in ultrathin ferromagnets, which are interesting candidates for novel spintronic techn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc6578cbb398c2bb65122857dcb34e82
https://doi.org/10.1103/physrevb.94.064413

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Measuring the Magnetic Moment Density in Patterned Ultrathin Ferromagnets with Submicrometer Resolution

Autor: T. Hingant, Dafiné Ravelosona, Luis Martinez, Jean-François Roch, Vincent Jacques, Jean-Philippe Tetienne, Karin Garcia

Publikováno v: Physical Review Applied. 4

We present a new approach to infer the surface density of magnetic moments $I_s$ in ultrathin ferromagnetic films with perpendicular anisotropy. It relies on quantitative stray field measurements with an atomic-size magnetometer based on the nitrogen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c19f691ca39e1d53a8095deab54ec765
https://doi.org/10.1103/physrevapplied.4.014003

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