What is absorbance and Transmittance? - Physics Stack Exchange I am currently doing some work in Spectroscopy, and I was wondering how are absorbance, and transmittance related? Do they have a domain, and range, how to read some sample graphs I was recomme
How to calculate refractive index from absorbance, transmittance or . . . 0 I have absorbance (Abs), reflectance (R%) and transmittance (T%) data of TiO2 deposited tin film on FTO glass substrate The data was collected using UV-Vis spectrophotometer How to calculate refractive index n from this? from the refractive index I will estimate the film thickness, then I will estimate the band gap of the thin film
Why is absorbance calculated as $\\log_{10}(1 R)$ and not $1-R$? According to Lambert Beers law, the absorbance (A A) of a sample at a given wavelength can be described in terms of its transmittance (T T) according to: A = log10(1 T) A = log 10 (1 T) In near-infrared spectroscopy, when measuring how light is reflected off of opaque samples, absorbance is commonly calculated using the same equation, but by simply substituting the transmittance for
A simple thin-film transmittance calculation problem I am trying to reproduce results of thin-film transmittance given in this article by using this online thin-film calculator tool (www filmetrics com) I would like to use the calculator later for m