Exploració per tema "GaAs"

Ara es mostren els items 1-2 de 2

    • Long-lived spin coherence of indirect excitons in GaAs coupled quantum wells 

      Beian, Mussie; Alloing, Mathieu; Cambril, Edmond; Gomez Carbonell, Carmen; Osmond, Johann; Lemaître, Aristide; Dubin, François (IOP, 2015-04-30)
      Article
      Accés obert
      We study spatially indirect excitons confined in a symmetric GaAs double quantum well. We show that the spin polarisation of very dilute gases can be optically imprinted, in both pure and superposition states. In the regime ...

    • Ohmic contacts fabricated on moderately doped p-type GaAs by sputtering deposition and a laser-firing process 

      Boronat Moreiro, Alfredo; Silvestre Bergés, Santiago; Orpella García, Alberto (2013-09-12)
      Article
      Accés obert
      A novel approach is used to achieve ohmic contacts on moderately doped p-type GaAs substrates. A laser-firing process is used instead of the conventional annealing step. The morphology of the crater created by the laser-firing ...