Polarization-dependent laser crystallization of Se-containing amorphous chalcogenide films
نویسندگان
چکیده
We report about the observation of influence of the light polarization on the photocrystallization process in the Se Ag I , elementary Se and Se Te films. Irradiation with linearly polarized He–Ne and Arq laser light results in the 70 15 15 80 20 Ž . formation of polycrystalline films with strong optical anisotropy dichroism , the sign of which is determined by the direction of the electrical vector of light. In the laser-crystallized Se Te films we observed also the anisotropy of the 80 20 photoconductivity. The results obtained indicate that the laser-induced crystallization has a nonthermal character. q 2000 Elsevier Science B.V. All rights reserved. PACS: 78.66.Jg; 42.70.Gi
منابع مشابه
Laser-induced polarization-dependent photocrystallization of amorphous chalcogenide films
Irradiation of amorphous a-Se Ag I and a-Se films by linearly polarized He–Neand Arq ion-laser light was shown 70 15 15 to produce polycrystalline films with linear dichroism, the sign of which is determined by the polarization of the light. Photocrystallization of the films was confirmed by direct structural investigations. Thus, a new phenomenon, the effect of light polarization on the photoc...
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