IT964741B - Dispositivo olografico di volume - Google Patents

Dispositivo olografico di volume

Info

Publication number
IT964741B
IT964741B IT69364/72A IT6936472A IT964741B IT 964741 B IT964741 B IT 964741B IT 69364/72 A IT69364/72 A IT 69364/72A IT 6936472 A IT6936472 A IT 6936472A IT 964741 B IT964741 B IT 964741B
Authority
IT
Italy
Prior art keywords
volume holographic
holographic device
volume
holographic
Prior art date
Application number
IT69364/72A
Other languages
English (en)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Application granted granted Critical
Publication of IT964741B publication Critical patent/IT964741B/it

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/725—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing inorganic compounds
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/05—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties
    • G02F1/0541—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties using photorefractive effects
    • 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
    • G03H1/0248—Volume holograms
    • 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
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/2645—Multiplexing processes, e.g. aperture, shift, or wavefront multiplexing
    • G03H1/265—Angle multiplexing; Multichannel holograms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
    • 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
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • G03H1/28—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique superimposed holograms only
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2240/00—Hologram nature or properties
    • G03H2240/20—Details of physical variations exhibited in the hologram
    • G03H2240/23—Optical length variations, e.g. bleached silver halide
    • G03H2240/24—Index variations only
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2260/00—Recording materials or recording processes
    • G03H2260/50—Reactivity or recording processes
    • G03H2260/54—Photorefractive reactivity wherein light induces photo-generation, redistribution and trapping of charges then a modification of refractive index, e.g. photorefractive polymer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Holo Graphy (AREA)
IT69364/72A 1971-07-21 1972-07-20 Dispositivo olografico di volume IT964741B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16450671A 1971-07-21 1971-07-21

Publications (1)

Publication Number Publication Date
IT964741B true IT964741B (it) 1974-01-31

Family

ID=22594797

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69364/72A IT964741B (it) 1971-07-21 1972-07-20 Dispositivo olografico di volume

Country Status (6)

Country Link
US (1) US3703328A (it)
BE (1) BE786359A (it)
CA (1) CA963710A (it)
DE (1) DE2234883A1 (it)
FR (1) FR2146421A1 (it)
IT (1) IT964741B (it)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514867B2 (it) * 1971-07-28 1976-02-16
US3915549A (en) * 1971-11-08 1975-10-28 Rca Corp Crystals for recording phase holograms
US3932299A (en) * 1972-10-30 1976-01-13 Rca Corporation Method for the reduction of iron in iron-doped lithium niobate crystals
US3799642A (en) * 1973-03-27 1974-03-26 Rca Corp Holographic recording on photochromic lithium niobate
US3933504A (en) * 1973-03-27 1976-01-20 Rca Corporation Photochromic lithium niobate and method for preparing same
DE2355136C3 (de) * 1973-11-05 1982-05-27 Hoechst Ag, 6000 Frankfurt Vorrichtung zum Aufzeichnen von überlagerten Hologrammen
US3922061A (en) * 1974-06-10 1975-11-25 Bell Telephone Labor Inc Optical storage apparatus and process
FR2312052A1 (fr) * 1975-05-23 1976-12-17 Thomson Csf Dispositif optique de stockage holographique et systeme de stockage tridimensionnel utilisant un tel dispositif
US4520387A (en) * 1980-08-06 1985-05-28 Moorfeed Corporation Holographic imager
FR2615635B1 (fr) * 1987-05-19 1991-10-11 Thomson Csf Dispositif de controle d'un faisceau lumineux dans un grand champ angulaire et application a un dispositif de detection
DE3818537A1 (de) * 1988-05-31 1989-12-07 Siemens Ag Lithiumniobat-einkristalle mit kongruenter zusammensetzung, insbesondere fuer oberflaechenwellenanordnungen, und verfahren zu deren herstellung
US5162928A (en) * 1988-11-02 1992-11-10 Canon Kabushiki Kaisha Head-up display apparatus
US5796096A (en) * 1991-07-26 1998-08-18 Accuwave Corporation Fabrication and applications of long-lifetime, holographic gratings in photorefractive materials
US5440669A (en) * 1991-07-26 1995-08-08 Accuwave Corporation Photorefractive systems and methods
US5491570A (en) * 1991-07-26 1996-02-13 Accuwave Corporation Methods and devices for using photorefractive materials at infrared wavelengths
EP0598761A1 (en) * 1991-07-26 1994-06-01 Accuwave Corporation Photorefractive systems and methods
US5691989A (en) * 1991-07-26 1997-11-25 Accuwave Corporation Wavelength stabilized laser sources using feedback from volume holograms
US5335098A (en) * 1991-07-26 1994-08-02 Accuwave Corporation Fixing method for narrow bandwidth volume holograms in photorefractive materials
US5436867A (en) * 1993-03-08 1995-07-25 Northrop Grumman Corporation Holographic random access memory
WO1996032666A1 (en) * 1995-04-12 1996-10-17 Northrop Grumman Corporation Method for mitigating cross-talk in high-efficiency holograms
WO1997044697A1 (en) * 1996-05-21 1997-11-27 Northrop Grumman Corporation Reference beam auto-focus apparatus for modularized volume-holographic memory
US5902519A (en) * 1997-03-18 1999-05-11 Northrop Grumman Corproation Process for oxidizing iron-doped lithium niobate
US6652780B2 (en) 1997-03-18 2003-11-25 Northrop Grumman Process for oxidizing iron-doped lithium niobate
US7397624B2 (en) 2003-11-06 2008-07-08 Seagate Technology Llc Transducers for ferroelectric storage medium
DE102004002109A1 (de) * 2004-01-14 2005-08-11 Deutsche Telekom Ag Behandlung von Kristallen zur Vermeidung lichtinduzierter Änderungen des Brechungsindex
US8917960B2 (en) * 2009-06-18 2014-12-23 Access Optical Networks, Inc. Optical switch using a michelson interferometer
WO2010148285A2 (en) * 2009-06-18 2010-12-23 Peter Donegan Integrated control electronics (ice) for a holographic storage system
WO2010148284A2 (en) * 2009-06-18 2010-12-23 Paul Prucnal Optical sensor array
WO2010148280A2 (en) * 2009-06-18 2010-12-23 Cadet, Gardy Method and system for re-writing with a holographic storage medium
US8456730B2 (en) * 2009-06-18 2013-06-04 Access Optical Networks, Inc. Directly modulated spatial light modulator
WO2010148281A2 (en) * 2009-06-18 2010-12-23 Cadet, Gardy Method and apparatus for bulk erasure in a holographic storage system
WO2010148279A2 (en) * 2009-06-18 2010-12-23 Cadet, Gardy Holographic storage system using angle-multiplexing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544189A (en) * 1968-06-12 1970-12-01 Bell Telephone Labor Inc Holography using a poled ferroelectric recording material

Also Published As

Publication number Publication date
FR2146421A1 (it) 1973-03-02
BE786359A (fr) 1972-11-16
CA963710A (en) 1975-03-04
US3703328A (en) 1972-11-21
DE2234883A1 (de) 1973-02-01

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