GB2323178B - Infrared radiation modulating device - Google Patents

Infrared radiation modulating device

Info

Publication number
GB2323178B
GB2323178B GB9812379A GB9812379A GB2323178B GB 2323178 B GB2323178 B GB 2323178B GB 9812379 A GB9812379 A GB 9812379A GB 9812379 A GB9812379 A GB 9812379A GB 2323178 B GB2323178 B GB 2323178B
Authority
GB
United Kingdom
Prior art keywords
infrared radiation
modulating device
radiation modulating
infrared
radiation
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.)
Expired - Fee Related
Application number
GB9812379A
Other versions
GB2323178A (en
GB9812379D0 (en
Inventor
Harvey Nicholas Rutt
Paul Antony Manning
Paul Peter Donohue
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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
Priority claimed from GBGB9519078.1A external-priority patent/GB9519078D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9812379A priority Critical patent/GB2323178B/en
Publication of GB9812379D0 publication Critical patent/GB9812379D0/en
Publication of GB2323178A publication Critical patent/GB2323178A/en
Application granted granted Critical
Publication of GB2323178B publication Critical patent/GB2323178B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02F1/01—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 
    • G02F1/015—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 semiconductor elements with at least one potential jump barrier, e.g. PN, PIN junction
    • 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 
    • G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
    • 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 
    • G02F1/015—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 semiconductor elements with at least one potential jump barrier, e.g. PN, PIN junction
    • G02F1/0155—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 semiconductor elements with at least one potential jump barrier, e.g. PN, PIN junction modulating the optical absorption
    • G02F1/0156—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 semiconductor elements with at least one potential jump barrier, e.g. PN, PIN junction modulating the optical absorption using free carrier absorption

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB9812379A 1995-09-19 1996-09-09 Infrared radiation modulating device Expired - Fee Related GB2323178B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9812379A GB2323178B (en) 1995-09-19 1996-09-09 Infrared radiation modulating device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9519078.1A GB9519078D0 (en) 1995-09-19 1995-09-19 Infrared modulating device
GB9812379A GB2323178B (en) 1995-09-19 1996-09-09 Infrared radiation modulating device
PCT/GB1996/002221 WO1997011402A1 (en) 1995-09-19 1996-09-09 Infrared radiation modulating device

Publications (3)

Publication Number Publication Date
GB9812379D0 GB9812379D0 (en) 1998-08-05
GB2323178A GB2323178A (en) 1998-09-16
GB2323178B true GB2323178B (en) 2000-04-05

Family

ID=26307780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9812379A Expired - Fee Related GB2323178B (en) 1995-09-19 1996-09-09 Infrared radiation modulating device

Country Status (1)

Country Link
GB (1) GB2323178B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692950A (en) * 1952-01-04 1954-10-26 Bell Telephone Labor Inc Valve for infrared energy
US4594507A (en) * 1983-10-14 1986-06-10 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Thermal imager
EP0467581A2 (en) * 1990-07-18 1992-01-22 Secretary of State for Trade and Industry in Her Britannic Majesty's Gov. of the U.K. of Great Britain and Northern Ireland Optical long-path gas monitoring apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692950A (en) * 1952-01-04 1954-10-26 Bell Telephone Labor Inc Valve for infrared energy
US4594507A (en) * 1983-10-14 1986-06-10 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Thermal imager
EP0467581A2 (en) * 1990-07-18 1992-01-22 Secretary of State for Trade and Industry in Her Britannic Majesty's Gov. of the U.K. of Great Britain and Northern Ireland Optical long-path gas monitoring apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Japanese Journal of Applied Physics vol.40 pp.186-190 *
Physical Review Letters vol. 57 no. 2 pp.249-252 *

Also Published As

Publication number Publication date
GB2323178A (en) 1998-09-16
GB9812379D0 (en) 1998-08-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050909