Raman scattering in lead selenide films at a low excitation level
作者： M. O. Kuzivanov , S. P. Zimin , A. V. Fedorov , A. V. Baranov
DOI: 10.1134/S0030400X15120140
关键词: Laser 、 Quality (physics) 、 Crystal structure 、 Phonon 、 Lead selenide 、 Raman scattering 、 Epitaxy 、 Optics 、 Excitation 、 Molecular physics 、 Materials science
摘要: Raman scattering spectra of epitaxial lead selenide films were measured at low (0.06 mW/μm2) excitation power densities to ensure the absence photo- and thermal modifications film material. It is shown that observed transitions correspond overtones or combinational tones PbSe phonon modes implying a high quality crystalline structure material for which first order effect prohibited. An increase in incident density leads appearance related oxides, masks characteristic spectral features selenide.
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