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Träfflista för sökning "WFRF:(Zhan Y.) srt2:(2000-2004)"

Search: WFRF:(Zhan Y.) > (2000-2004)

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1.
  • Zhang, Shi-Li, et al. (author)
  • Abnormal anti-Stokes Raman scattering of carbon nanotubes
  • 2002
  • In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 66:3
  • Journal article (peer-reviewed)abstract
    • Abnormal anti-Stokes Raman scattering (AASR) was unambiguously observed in carbon nanotubes (CNT's). In contrast to traditional Raman scattering theory, the absolute value of the Raman frequency of the anti-Stokes peak is not the same as that of the corresponding Stokes peak. It was demonstrated that AASR scattering originates from the unique nanoscale cylindrical structure of CNT's that can be considered naturally as a graphite structure with an intrinsic defect from its rolling. The double-resonance Raman scattering theory was applied to interpret the scattering mechanism of the AASR phenomenon successfully and quantitatively.
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2.
  • Cao, X., et al. (author)
  • Comparative studies on annealed proton exchange waveguides in Y-cut MgO : LiNbO3 and Z-cut LiNbO3
  • 2004
  • In: Wuli xuebao. - : Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences. - 1000-3290. ; 53:11, s. 3786-3793
  • Journal article (peer-reviewed)abstract
    • Proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 crystals were fabricated , and the diffusion coefficients for the proton exchange process are obtained. The evolution characteristics of the waveguide index profile in the annealing process are studied. The structural deformation of the proton exchange waveguides in Mg O:LiNbO.3 and LiNbO.3 and the restoration effect of annealing are also studied tho roughly by the x-ray diffraction method and the OH-infrared absorption method. The optical and structural characteristics of annealed proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 are analysed and compared with eath other.
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