The optical constants determination of thin-films
سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 575
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شناسه ملی سند علمی:
MATHPHY02_130
تاریخ نمایه سازی: 30 شهریور 1394
چکیده مقاله:
A method for calculating the optical constants of weakly absorbing homogeneous thin films of refractive index, n lower than substrate index, s (s < n) and extinction coefficient, k from the spectral Transmission information alone with no prior knowledge of their characteristics was studied. Initially the procedure uses transmission turning point data to estimate the refractive index, n and extinction coefficient, k by an analytical approach. The calculations are done from the knowledge of transmission turning point data, which was obtained from Shimadzu UV3100 spectrophotometer. The data are then fitted to a high order polynomial function that undergoes an iterative refinement routine by means of a goal seek routine to determine with good accuracy the film parameters as a function of wavelength
کلیدواژه ها:
optical constants ، refractive index ، transmission ، thin films ، turning point and weakly absorbing
نویسندگان
A. Sardarzaei
Chabahar Maritime University, faculty of Marine Sciences, Department of Basic Sciences
Z. Kiamehr
Chabahar Maritime University, faculty of Marine Sciences, Department of Basic Sciences