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EP0252784A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Mixed lanthanium-magnesium-gallates and lasers using these gallates

Assignee: Centre National de la Recherche Scientifique
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Filing: 1987-06-09
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Granted: —
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Expires: 2007-06-09
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Abstract

Abstract Translated from French Gallates mixtes de lanthanide-magnésium, laser utilisant des monocristaux de ces gallates. Ce laser comporte deux lampes flash (14, 18) pour pomper longitudinalement un barreau (10) monocristallin d'un gallate de type magnétoplombite émettant une lumière allant de l'UV à L'IR, amplifiée entre deux miroirs (22-24), et un prisme polariseur (26) servant à envoyer vers l'extérieur du laser le faisceau lumineux amplifié. Le gallate présente la formule : <IMAGE> dans laquelle M¹ représente Nd, Pr, Ce, Nd-Ce ou Pr-Ce à l'état trivalent ; M² représente l'aluminium éventuellement partiellement substitué par le scandium et/ou l'indium ; k est un nombre allant de 0,94 à 1 ; x est un nombre allant de 0 à 1 ; t est un nombre tel que 0<=t<=0,05, à condition que t soit ¬=0, quand x=0 et que x soit ¬=0 quand t=0 ; v est un nombre tel que 0<=v+t<1; z est un nombre allant de 0 à 0,5. Mixed gallates of lanthanide-magnesium, laser using single crystals of these gallates. This laser comprises two flash lamps (14, 18) for pumping longitudinally a rod (10) monocrystalline of a gallate of magnetoplombite type emitting a light going from UV to IR, amplified between two mirrors (22-24), and a polarizing prism (26) for sending the amplified light beam to the outside of the laser. The gallate has the formula: <IMAGE> in which M¹ represents Nd, Pr, Ce, Nd-Ce or Pr-Ce in the trivalent state; M² represents aluminum possibly partially substituted by scandium and / or indium; k is a number ranging from 0.94 to 1; x is a number ranging from 0 to 1; t is a number such that 0 <= t <= 0.05, provided that t is ¬ = 0, when x = 0 and that x is ¬ = 0 when t = 0; v is a number such that 0 <= v + t <1; z is a number from 0 to 0.5.

Inventors

  • 👤 Bernard Ferrand
  • 👤 Yves Grange
  • 👤 Dominique Lefebvre
  • 👤 Jeannine Thery
  • 👤 Daniel Vivien

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 17:16
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B11/00; C30B15/00

Claims Analysis

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References Cited (Backward Citations)

EP0033990A2 Cited
EP0043776A1 Cited

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