Highly-resonant two-polarization transmission guided-mode resonance filter

Autor: Léopold Macé, Olivier Gauthier-Lafaye, Antoine Monmayrant, Stéphane Calvez, Henri Camon, Hervé Leplan

Publikováno v: AIP Advances, Vol 8, Iss 11, Pp 115228-115228-7 (2018)

We theoretically demonstrate a mid-infrared polarization-independent guided-mode-resonance transmission filter. We designed a structure based on a deeply-etched 2D grating above a thin slab of the same material respectively supporting transverse magn

Externí odkaz: https://doaj.org/article/a787eca6b038437186f6afdd2259cc23

Freeform optics design, fabrication and testing technologies for Space applications

Autor: Francois Riguet, Remi Bourgois, Renaud Mercier-Ythier, Eric Ruch, Roland Geyl, Hervé Leplan

Publikováno v: International Conference on Space Optics — ICSO 2018.

The introduction of freefrom optical surfaces in a space instrument offers the possibility to improve its performance, its volume and weight or a combination of both. This is shown to be valid for either imaging systems or spectroscopic systems. At S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28260518220d9bec1f68d5189aa6e021
https://doi.org/10.1117/12.2535944

Multi-dielectric broadband antireflection deposition on the world’s largest fused silica lens

Autor: François Riguet, Hervé Leplan, Rémi Lhuillier, Christophe Couteret, Justin E. Wolfe, Abdelhamid Ghrib, Adrien Hervy

Publikováno v: Optical Interference Coatings Conference (OIC) 2019.

The antireflection coating of the world’s largest fused silica lens is presented. The final coating exhibits more than 97% of averaged throughput for 300-1100nm spectral band. Coating has been performed with a qualified PVD process.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b4c44b630fc554cf77f1600d83e2e65d
https://doi.org/10.1364/oic.2019.mb.7

Fabrication of Doubly-Corrugated Zero-Contrast-Grating for Broadband Pixelated Filtering in the Mid-IR Range

Autor: Olivier Gauthier-Lafaye, Antoine Monmayrant, Henri Camon, Léopold Macé, Hervé Leplan, Fabien Pradal, Meihdi Oussalah, Laurent Mazenq, Pascal Dubreuil, Adrien Hervy

Publikováno v: 2018 20th International Conference on Transparent Optical Networks (ICTON)
20th International Conference on Transparent Optical Networks (ICTON 2018)
20th International Conference on Transparent Optical Networks (ICTON 2018), Jul 2018, Bucharest, Romania
ICTON

International audience; Zero-contrast grating filters (ZCG) car be used to implement efficient bandpass transmission filter with narrow bandwidths of a few nanometers. In a precedent article [1], we have illustrated the validity of the ZCG approach f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fac77316da2d3e134201ccb7cbd8b747
https://hal.laas.fr/hal-01917558

Pushing SiC polishing technology for advanced applications

Autor: Gilles Chaussat, Hervé Leplan, Roland Geyl

Publikováno v: Optical Fabrication, Testing, and Metrology VI.

Since two decades Safran Reosc is developing best technique to offer polishing services of Silicon Carbide to the optical community, especially for space applications. Today we want to share with the community our efforts along various actions of pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6b80965cc58f3abda473a40bf33bb1a
https://doi.org/10.1117/12.2314452