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Träfflista för sökning "WFRF:(Goldys E. M.) srt2:(2005)"

Sökning: WFRF:(Goldys E. M.) > (2005)

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1.
  • Gryczynski, I., et al. (författare)
  • Directional two-photon induced surface plasmon-coupled emission
  • 2005
  • Ingår i: Thin Solid Films. - : Elsevier BV. - 0040-6090. ; 491:1-2, s. 173-176
  • Tidskriftsartikel (refereegranskat)abstract
    • We measured a directional surface plasmon-coupled emission (SPCE) induced by a two-photon absorption. A 60 nm thick layer of poly(vinyl alcohol) film doped with rhodamine 123 was deposited on a silvered (50 nm Ag) glass slide, which was attached to a hemicylindrical glass prism. The 820 nm excitation from a femtosecond Ti:Sapphire laser was used either in reverse Kretschmann or Kretschmann configuration. The angular distribution of two-photon induced SPCE does not depend on the used configuration. The two-photon induced SPCE can be applied to improve immunoassays and deoxyribonucleic acid detection. © 2005 Elsevier B.V. All rights reserved.
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3.
  • Paskova, Tanja, et al. (författare)
  • Donor-acceptor pair emission enhancement in mass-transport-grown GaN
  • 2005
  • Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 98:3, s. 033508-
  • Tidskriftsartikel (refereegranskat)abstract
    • A dominating donor-acceptor pair (DAP) emission at about 3.27 eV is observed in the photoluminescence and cathodoluminescence spectra of intentionally undoped mass-transport (MT)-grown GaN, while only a weak presence of the DAP emission is recorded in the as-grown hydride vapor phase epitaxial GaN. A comparative study of impurity and native defect incorporation in the as-grown and MT GaN was performed, showing a significant increase of oxygen and empty clusters involving Ga vacancy and oxygen in the MT GaN. Based on the observed results as well as on doping analysis of the structure and kinetic analysis of the emission intensities, we propose an acceptorlike complex, creating a state as a semiclassical potential well near the valence-band top due to the local tensile strain caused by the empty clusters to be responsible for the dominating behavior of the DAP emission. © 2005 American Institute of Physics.
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