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FR3080191B1 - Filtre spectral de rayonnement electromagnetique - Google Patents

Filtre spectral de rayonnement electromagnetique Download PDF

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Publication number
FR3080191B1
FR3080191B1 FR1800306A FR1800306A FR3080191B1 FR 3080191 B1 FR3080191 B1 FR 3080191B1 FR 1800306 A FR1800306 A FR 1800306A FR 1800306 A FR1800306 A FR 1800306A FR 3080191 B1 FR3080191 B1 FR 3080191B1
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FR
France
Prior art keywords
electromagnetic radiation
filter
spectral filter
metallic layers
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1800306A
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English (en)
Other versions
FR3080191A1 (fr
Inventor
Mathilde Makhsiyan
Patrick Bouchon
Sebastien Heron
Riad Haidar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR1800306A priority Critical patent/FR3080191B1/fr
Priority to PCT/FR2019/050780 priority patent/WO2019197754A1/fr
Publication of FR3080191A1 publication Critical patent/FR3080191A1/fr
Application granted granted Critical
Publication of FR3080191B1 publication Critical patent/FR3080191B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/288—Interference filters comprising deposited thin solid films comprising at least one thin film resonant cavity, e.g. in bandpass filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1809—Diffraction gratings with pitch less than or comparable to the wavelength
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

Un filtre spectral (10) de type Fabry-Pérot pour rayonnement électromagnétique comprend deux couches métalliques (1, 2) parallèles qui sont disposées de chaque côté d'un milieu diélectrique (3). L'une des deux couches métalliques est micro-structurée, avec une dimension (w) de zones (4) à épaisseur réduite ou nulle qui est plus petite que des longueurs d'onde d'un rayonnement à filtrer. Le filtre présente des valeurs de facteur de qualité et/ou de taux de réjection qui sont améliorées par rapport à un filtre à couches métalliques qui sont continues et uniformes.
FR1800306A 2018-04-13 2018-04-13 Filtre spectral de rayonnement electromagnetique Active FR3080191B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1800306A FR3080191B1 (fr) 2018-04-13 2018-04-13 Filtre spectral de rayonnement electromagnetique
PCT/FR2019/050780 WO2019197754A1 (fr) 2018-04-13 2019-04-03 Filtrage spectral de rayonnement électromagnétique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1800306 2018-04-13
FR1800306A FR3080191B1 (fr) 2018-04-13 2018-04-13 Filtre spectral de rayonnement electromagnetique

Publications (2)

Publication Number Publication Date
FR3080191A1 FR3080191A1 (fr) 2019-10-18
FR3080191B1 true FR3080191B1 (fr) 2022-03-11

Family

ID=63294262

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1800306A Active FR3080191B1 (fr) 2018-04-13 2018-04-13 Filtre spectral de rayonnement electromagnetique

Country Status (2)

Country Link
FR (1) FR3080191B1 (fr)
WO (1) WO2019197754A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007147A1 (fr) * 2010-07-15 2012-01-19 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. . Système de filtre passe-bande optique, destiné notamment à des mesures spectralement sélectives sur plusieurs canaux
FR3007148B1 (fr) * 2013-06-17 2016-11-25 Centre Nat De La Rech Scient - Cnrs Element de filtrage optique angulaire pour le filtrage angulaire a selectivite angulaire controlee

Also Published As

Publication number Publication date
FR3080191A1 (fr) 2019-10-18
WO2019197754A1 (fr) 2019-10-17

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