WO2005072396A3 - Phase masks for use in holographic data storage - Google Patents

Phase masks for use in holographic data storage Download PDF

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Publication number
WO2005072396A3
WO2005072396A3 PCT/US2005/002678 US2005002678W WO2005072396A3 WO 2005072396 A3 WO2005072396 A3 WO 2005072396A3 US 2005002678 W US2005002678 W US 2005002678W WO 2005072396 A3 WO2005072396 A3 WO 2005072396A3
Authority
WO
WIPO (PCT)
Prior art keywords
phase mask
cover window
slm
transmissive
liquid crystal
Prior art date
Application number
PCT/US2005/002678
Other languages
French (fr)
Other versions
WO2005072396A2 (en
Inventor
Mark Handschy
Michael J O'callaghan
Christopher M Walker
Original Assignee
Displaytech Inc
Mark Handschy
Michael J O'callaghan
Christopher M Walker
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 Displaytech Inc, Mark Handschy, Michael J O'callaghan, Christopher M Walker filed Critical Displaytech Inc
Priority to JP2006551491A priority Critical patent/JP4795974B2/en
Priority to EP05712209A priority patent/EP1751746A4/en
Publication of WO2005072396A2 publication Critical patent/WO2005072396A2/en
Publication of WO2005072396A3 publication Critical patent/WO2005072396A3/en

Links

Classifications

    • 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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/292—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 position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
    • 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
    • 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/16—Processes or apparatus for producing holograms using Fourier transform
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133565—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements inside the LC elements, i.e. between the cell substrates
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G03H2001/0208—Individual components other than the hologram
    • G03H2001/0224—Active addressable light modulator, i.e. Spatial Light Modulator [SLM]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/13—Phase mask

Abstract

A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.
PCT/US2005/002678 2004-01-27 2005-01-27 Phase masks for use in holographic data storage WO2005072396A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006551491A JP4795974B2 (en) 2004-01-27 2005-01-27 Write head for use in holographic data storage
EP05712209A EP1751746A4 (en) 2004-01-27 2005-01-27 Phase masks for use in holographic data storage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US53962004P 2004-01-27 2004-01-27
US60/539,620 2004-01-27
US54073704P 2004-01-30 2004-01-30
US60/540,737 2004-01-30

Publications (2)

Publication Number Publication Date
WO2005072396A2 WO2005072396A2 (en) 2005-08-11
WO2005072396A3 true WO2005072396A3 (en) 2006-12-28

Family

ID=34830488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/002678 WO2005072396A2 (en) 2004-01-27 2005-01-27 Phase masks for use in holographic data storage

Country Status (4)

Country Link
US (2) US7656768B2 (en)
EP (1) EP1751746A4 (en)
JP (1) JP4795974B2 (en)
WO (1) WO2005072396A2 (en)

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JP4795974B2 (en) 2004-01-27 2011-10-19 ディスプレイテック，インコーポレイテッド Write head for use in holographic data storage
JP2006276373A (en) * 2005-03-29 2006-10-12 Sony Corp Hologram recording device and phase mask
JP2007025367A (en) * 2005-07-19 2007-02-01 Sony Corp Hologram recording apparatus and hologram recording method
TW200801865A (en) * 2006-03-29 2008-01-01 Koninkl Philips Electronics Nv Setup for storing data in a holographic storage medium and phase plate
US7733557B2 (en) * 2006-04-24 2010-06-08 Micron Technology, Inc. Spatial light modulators with changeable phase masks for use in holographic data storage
JP5236321B2 (en) * 2007-03-16 2013-07-17 パナソニック株式会社 Hologram recording / reproducing device
US7986603B1 (en) * 2007-09-29 2011-07-26 Silicon Light Machines Corporation Spatial light modulator for holographic data storage
JP2009139587A (en) * 2007-12-05 2009-06-25 Rohm Co Ltd Light controller
TWI365363B (en) * 2008-06-06 2012-06-01 Univ Nat Chiao Tung Spatial lilght modulator
TWI514000B (en) * 2010-08-31 2015-12-21 Corning Inc Mems based surveillance system and a method for using same
US8721092B2 (en) * 2012-05-09 2014-05-13 Microvision, Inc. Wide field of view substrate guided relay
KR20140027812A (en) * 2012-08-27 2014-03-07 삼성전자주식회사 Phase mask and holographic recording apparatus employing the same
US9817159B2 (en) * 2015-01-31 2017-11-14 Microsoft Technology Licensing, Llc Structured light pattern generation
US10310335B2 (en) * 2016-02-29 2019-06-04 Microsoft Technology Licensing, Llc Reducing orders of diffraction patterns
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Also Published As

Publication number Publication date
US20100091631A1 (en) 2010-04-15
EP1751746A4 (en) 2008-06-11
US8107344B2 (en) 2012-01-31
WO2005072396A2 (en) 2005-08-11
JP4795974B2 (en) 2011-10-19
JP2007519980A (en) 2007-07-19
EP1751746A2 (en) 2007-02-14
US7656768B2 (en) 2010-02-02
US20050207313A1 (en) 2005-09-22

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