IL295913B2 - Diffraction gratings formed by metasurfaces having differently oriented nanobeams - Google Patents

Diffraction gratings formed by metasurfaces having differently oriented nanobeams

Info

Publication number
IL295913B2
IL295913B2 IL295913A IL29591322A IL295913B2 IL 295913 B2 IL295913 B2 IL 295913B2 IL 295913 A IL295913 A IL 295913A IL 29591322 A IL29591322 A IL 29591322A IL 295913 B2 IL295913 B2 IL 295913B2
Authority
IL
Israel
Prior art keywords
nanobeams
light
lines
diffraction
metasurface
Prior art date
Application number
IL295913A
Other languages
English (en)
Hebrew (he)
Other versions
IL295913B1 (en
IL295913A (en
Original Assignee
Magic Leap Inc
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 Magic Leap Inc filed Critical Magic Leap Inc
Publication of IL295913A publication Critical patent/IL295913A/en
Publication of IL295913B1 publication Critical patent/IL295913B1/en
Publication of IL295913B2 publication Critical patent/IL295913B2/en

Links

Classifications

    • 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
    • G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G02B5/1871—Transmissive phase gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1842—Gratings for image generation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/101—Nanooptics
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2222/00—Light sources or light beam properties
    • G03H2222/31—Polarised light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/16—Optical waveguide, e.g. optical fibre, rod

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Optical Head (AREA)
  • Polarising Elements (AREA)
IL295913A 2017-01-27 2018-01-25 Diffraction gratings formed by metasurfaces having differently oriented nanobeams IL295913B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762451615P 2017-01-27 2017-01-27
US201762451608P 2017-01-27 2017-01-27
PCT/US2018/015324 WO2018140651A1 (en) 2017-01-27 2018-01-25 Diffraction gratings formed by metasurfaces having differently oriented nanobeams

Publications (3)

Publication Number Publication Date
IL295913A IL295913A (en) 2022-10-01
IL295913B1 IL295913B1 (en) 2023-11-01
IL295913B2 true IL295913B2 (en) 2024-03-01

Family

ID=62978799

Family Applications (3)

Application Number Title Priority Date Filing Date
IL307294A IL307294A (en) 2017-01-27 2018-01-25 Diffraction gratings produced using a surface cell with differently oriented nanobeams
IL295913A IL295913B2 (en) 2017-01-27 2018-01-25 Diffraction gratings formed by metasurfaces having differently oriented nanobeams
IL268200A IL268200B2 (en) 2017-01-27 2019-07-21 Diffraction gratings formed by metasurfaces having differently oriented nanobeams

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IL307294A IL307294A (en) 2017-01-27 2018-01-25 Diffraction gratings produced using a surface cell with differently oriented nanobeams

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL268200A IL268200B2 (en) 2017-01-27 2019-07-21 Diffraction gratings formed by metasurfaces having differently oriented nanobeams

Country Status (9)

Country Link
US (4) US10466394B2 (enExample)
EP (2) EP4206752A1 (enExample)
JP (4) JP7142015B2 (enExample)
KR (3) KR102668813B1 (enExample)
CN (2) CN114200562A (enExample)
AU (2) AU2018212726B2 (enExample)
CA (1) CA3051414A1 (enExample)
IL (3) IL307294A (enExample)
WO (1) WO2018140651A1 (enExample)

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