GB1423601A - Lasers comprising dielectric active material - Google Patents

Lasers comprising dielectric active material

Info

Publication number
GB1423601A
GB1423601A GB328573A GB328573A GB1423601A GB 1423601 A GB1423601 A GB 1423601A GB 328573 A GB328573 A GB 328573A GB 328573 A GB328573 A GB 328573A GB 1423601 A GB1423601 A GB 1423601A
Authority
GB
United Kingdom
Prior art keywords
hyperphosphate
acid
jan
situ
derived
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
Application number
GB328573A
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1423601A publication Critical patent/GB1423601A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/085—Vanadates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0855—Phosphates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0855—Phosphates
    • C09K11/0872—Phosphates with rare earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Luminescent Compositions (AREA)
  • Lasers (AREA)

Abstract

1423601 Hyperphosphates WESTERN ELECTRIC CO Inc 23 Jan 1973 [24 Jan 1972] 3285/73 Heading C1A [Also in Division H1] The dielectric active medium in a laser comprises neodymium hyperphosphate, neodymiumchromium hyperphosphate or neodymiumlanthanum hyperphosphate. The crystals may be grown by heating a solution of the metal oxide(s) on phosphoric acid. An inert container, e.g. a gold or graphite crucible is used, the latter in an O 2 -free atmosphere. The solvent acid is metaphosphoric acid, which may be derived from normal acid in situ by heating. The metal oxide(s) may be derived in situ from salts. Examples describe the preparation of NdP 5 O 14 , LaNdO 3 (P 2 O 5 ) 5 and Cr 2 O 3 (P 2 O 5 ) 5 .
GB328573A 1972-01-24 1973-01-23 Lasers comprising dielectric active material Expired GB1423601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22044872A 1972-01-24 1972-01-24

Publications (1)

Publication Number Publication Date
GB1423601A true GB1423601A (en) 1976-02-04

Family

ID=22823580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB328573A Expired GB1423601A (en) 1972-01-24 1973-01-23 Lasers comprising dielectric active material

Country Status (7)

Country Link
JP (1) JPS4885489A (en)
CA (1) CA961147A (en)
DE (1) DE2302590A1 (en)
FR (1) FR2329342A1 (en)
GB (1) GB1423601A (en)
NL (1) NL7300878A (en)
SE (1) SE377637B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516096B2 (en) * 1974-02-15 1980-04-28
JPS54100991A (en) * 1978-01-27 1979-08-09 Hitachi Ltd Fluorescent substance
JPS55145383A (en) * 1979-04-27 1980-11-12 Nec Corp Solid laser oscillator excited by argon ion laser

Also Published As

Publication number Publication date
JPS4885489A (en) 1973-11-13
FR2329342A1 (en) 1977-05-27
FR2329342B1 (en) 1978-04-21
CA961147A (en) 1975-01-14
DE2302590A1 (en) 1973-07-26
NL7300878A (en) 1973-07-26
SE377637B (en) 1975-07-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee