AU2018332878B2 - Thermally assisted negative electron affinity photocathode - Google Patents

Thermally assisted negative electron affinity photocathode Download PDF

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Publication number
AU2018332878B2
AU2018332878B2 AU2018332878A AU2018332878A AU2018332878B2 AU 2018332878 B2 AU2018332878 B2 AU 2018332878B2 AU 2018332878 A AU2018332878 A AU 2018332878A AU 2018332878 A AU2018332878 A AU 2018332878A AU 2018332878 B2 AU2018332878 B2 AU 2018332878B2
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AU
Australia
Prior art keywords
photocathode
layer
barrier
accordance
conduction band
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
AU2018332878A
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English (en)
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AU2018332878A1 (en
Inventor
Verle Aebi
Kenneth A. Costello
Michael Jurkovic
Xi Zeng
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.)
Photonics West LLC
Original Assignee
Photonics West LLC
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 Photonics West LLC filed Critical Photonics West LLC
Publication of AU2018332878A1 publication Critical patent/AU2018332878A1/en
Assigned to EOTECH, LLC reassignment EOTECH, LLC Request for Assignment Assignors: INTEVAC, INC.
Application granted granted Critical
Publication of AU2018332878B2 publication Critical patent/AU2018332878B2/en
Assigned to PHOTONICS WEST, LLC reassignment PHOTONICS WEST, LLC Request for Assignment Assignors: EOTECH, LLC
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/34—Photo-emissive cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/48—Tubes with amplification of output effected by electron multiplier arrangements within the vacuum space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/34—Photoemissive electrodes
    • H01J2201/342—Cathodes
    • H01J2201/3421—Composition of the emitting surface
    • H01J2201/3423—Semiconductors, e.g. GaAs, NEA emitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2231/00—Cathode ray tubes or electron beam tubes
    • H01J2231/50—Imaging and conversion tubes
    • H01J2231/501—Imaging and conversion tubes including multiplication stage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/49—Pick-up adapted for an input of electromagnetic radiation other than visible light and having an electric output, e.g. for an input of X-rays, for an input of infrared radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
AU2018332878A 2017-09-12 2018-09-12 Thermally assisted negative electron affinity photocathode Active AU2018332878B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/702,647 2017-09-12
US15/702,647 US10692683B2 (en) 2017-09-12 2017-09-12 Thermally assisted negative electron affinity photocathode
PCT/US2018/050735 WO2019055554A1 (en) 2017-09-12 2018-09-12 PHOTOCATHODE WITH THERMALLY ASSISTED NEGATIVE ELECTRONIC AFFINITY

Publications (2)

Publication Number Publication Date
AU2018332878A1 AU2018332878A1 (en) 2020-04-09
AU2018332878B2 true AU2018332878B2 (en) 2023-03-30

Family

ID=65632374

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2018332878A Active AU2018332878B2 (en) 2017-09-12 2018-09-12 Thermally assisted negative electron affinity photocathode

Country Status (7)

Country Link
US (1) US10692683B2 (enExample)
EP (1) EP3682461B1 (enExample)
JP (1) JP7227230B2 (enExample)
AU (1) AU2018332878B2 (enExample)
CA (1) CA3075509C (enExample)
IL (1) IL273140B2 (enExample)
WO (1) WO2019055554A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11621289B2 (en) 2020-05-22 2023-04-04 Eotech, Llc Compact proximity focused image sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829355A (en) * 1985-12-20 1989-05-09 Thomson-Csf Photocathode having internal amplification
US5712490A (en) * 1996-11-21 1998-01-27 Itt Industries, Inc. Ramp cathode structures for vacuum emission

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507386A1 (fr) * 1981-06-03 1982-12-10 Labo Electronique Physique Dispositif semi-conducteur, emetteur d'electrons, dont la couche active possede un gradient de dopage
JPH0512989A (ja) * 1991-07-01 1993-01-22 Nec Corp 半導体光電面およびその製造方法
US5268612A (en) * 1991-07-01 1993-12-07 Intevac, Inc. Feedback limited microchannel plate
US5268570A (en) 1991-12-20 1993-12-07 Litton Systems, Inc. Transmission mode InGaAs photocathode for night vision system
US5349177A (en) * 1993-02-22 1994-09-20 Itt Corporation Image intensifier tube having a solid state electron amplifier
US5597112A (en) 1994-10-13 1997-01-28 Knapp; Frederick W. Collapsible octahedral container
US6005257A (en) * 1995-09-13 1999-12-21 Litton Systems, Inc. Transmission mode photocathode with multilayer active layer for night vision and method
JP2000090817A (ja) * 1998-09-11 2000-03-31 Daido Steel Co Ltd 偏極電子線発生素子
US6350999B1 (en) * 1999-02-05 2002-02-26 Matsushita Electric Industrial Co., Ltd. Electron-emitting device
US6957992B2 (en) * 1999-03-18 2005-10-25 Litton Systems, Inc. Image intensification tube
US6483231B1 (en) * 1999-05-07 2002-11-19 Litton Systems, Inc. Night vision device and method
JPWO2002078144A1 (ja) * 2001-03-27 2004-07-15 シャープ株式会社 半導体装置及び結晶成長方法
US6633125B2 (en) * 2001-05-31 2003-10-14 Itt Manufacturing Enterprises, Inc. Short wavelength infrared cathode
JP2004179318A (ja) * 2002-11-26 2004-06-24 Nec Compound Semiconductor Devices Ltd 接合型電界効果トランジスタ及びその製造方法
US6998635B2 (en) * 2003-05-22 2006-02-14 Itt Manufacturing Enterprises Inc. Tuned bandwidth photocathode for transmission negative electron affinity devices
US7838869B2 (en) * 2005-10-21 2010-11-23 Georgia State University Research Foundation, Inc. Dual band photodetector
JP5267931B2 (ja) 2008-10-29 2013-08-21 独立行政法人理化学研究所 光陰極半導体素子
US9601299B2 (en) * 2012-08-03 2017-03-21 Kla-Tencor Corporation Photocathode including silicon substrate with boron layer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829355A (en) * 1985-12-20 1989-05-09 Thomson-Csf Photocathode having internal amplification
US5712490A (en) * 1996-11-21 1998-01-27 Itt Industries, Inc. Ramp cathode structures for vacuum emission

Also Published As

Publication number Publication date
WO2019055554A1 (en) 2019-03-21
CA3075509C (en) 2024-05-14
EP3682461B1 (en) 2024-11-06
JP2020533760A (ja) 2020-11-19
US10692683B2 (en) 2020-06-23
IL273140A (en) 2020-04-30
IL273140B2 (en) 2024-10-01
EP3682461A1 (en) 2020-07-22
IL273140B1 (en) 2024-06-01
AU2018332878A1 (en) 2020-04-09
JP7227230B2 (ja) 2023-02-21
US20190080875A1 (en) 2019-03-14
EP3682461A4 (en) 2021-11-10
CA3075509A1 (en) 2019-03-21

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Owner name: EOTECH, LLC

Free format text: FORMER APPLICANT(S): INTEVAC, INC.

FGA Letters patent sealed or granted (standard patent)
PC Assignment registered

Owner name: PHOTONICS WEST, LLC

Free format text: FORMER OWNER(S): EOTECH, LLC