کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5368039 | 1388383 | 2011 | 6 صفحه PDF | دانلود رایگان |
The porous optical film has higher threshold of laser-induced damage than densified films, for the study of mechanism of laser-induced damage of porous optical film with ordered pore structure. Porous anodic alumina (PAA) film with high transmittance on glass substrate has been prepared. Aluminum film was deposited on glass substrate by means of resistance and electron beam heat (EBH) evaporation. Porous alumina was prepared in oxalic acid solution under different anodizing conditions. At normal incidence, the optical transmittance spectrum over 300-1000Â nm spectra region was obtained by spectrophotometer. SEM was introduced to analysis the morphology of the porous alumina film. The pore aperture increased with the increase of anodizing voltage, which resulted in a rapid decrease of the pore concentration and the optical thickness of porous alumina film. Damage morphology of porous alumina film is found to be typically defects initiated, and the defect is the pore presented on the film.
Research highlightsⶠPorous anodic alumina (PAA) with ordered pore structure is chose for the study of mechanism of laser-induced damage of porous optical film. ⶠThe pores on the alumina are the highly vulnerable to damage under the radiation of laser. ⶠGrow PAA films on glass, which opens up the possibility of a host of application that involve optics and biologically relevant microscopic work.
Journal: Applied Surface Science - Volume 257, Issue 8, 1 February 2011, Pages 3307-3312