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Träfflista för sökning "L773:0003 6951 OR L773:1077 3118 srt2:(1980-1984)"

Sökning: L773:0003 6951 OR L773:1077 3118 > (1980-1984)

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  • Lundberg, Hans, et al. (författare)
  • High-gain Soft-x-ray Pumped Photoionization Laser in Zinc Vapor
  • 1984
  • Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 45:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Large inversion densities in Zn+ have been produced by photoionizing inner #x2010;shell d electrons with the broadband soft #x2010;x #x2010;ray flux from a 1.06 #x2010; #x3bc;m laser #x2010;produced plasma. This pumping scheme is an effective technique for rapidly producing large population densities (5 #xd7;1013 cm-3) in the 3d9 #x2009;4s2 #x2009;2D5/2 upper laser level. These large densities (a) produced laser action on a two #x2010;electron transition from the d #x2010;electron manifold to the outer #x2010;electron manifold at 7478 #xc5;, (b) allowed the isotope shifts on this relatively weak transition to be measured, and (c) may eventually be transferred to other high lying states in Zn+ to produce vacuum ultraviolet lasers.
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  • Winquist, Fredrik, et al. (författare)
  • Modified palladium metal‐oxide‐semiconductor structures with increased ammonia gas sensitivity
  • 1983
  • Ingår i: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 43:9, s. 839-841
  • Tidskriftsartikel (refereegranskat)abstract
    • It is known that palladium metal‐oxide‐semiconductor (Pd‐MOS) structures are sensitive detectors for hydrogen gas. We show that the evaporation of a thin film of catalytically active metals on top of the structure can increase the sensitivity towards ammonia considerably. It was found that the thin metal must be in contact with the oxide to cause the increased sensitivity. The largest increase was observed with the transition metals Ir and Pt. The ammonia sensitivity could be enhanced about 60 times compared to that of an unmodified structure
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  • Resultat 1-8 av 8

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