What is the difference between reflectivity and reflectance?
Aug 2, 2023 · This question is in the context of solar reflections in buildings that cause glare. The two terms are similar but they have differences.
Calculating absorption coefficient from Transmittance and …
Nov 27, 2024 · I have some spectrum data from a sample, specifically the Transmittance and Reflectance of the sample. I would like to use this to calculate the absorption coefficient.
What is the relation between reflectance and intensity?
Mar 18, 2019 · Absolute reflectance is difficult to measure. Intensity is considerably easier. Reflectance requires a calibrated detector system, or a known reference sample, or both. …
Why is absorbance calculated as $\log_ {10} (1/R)$ and not $1-R$?
Mar 7, 2019 · 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 …
Refractive Index and Reflection - Physics Stack Exchange
Aug 14, 2017 · Does the magnitude of the refractive index affect reflection? Will a ray be more reflected the higher the refractive index of the other medium is?
Why thickness of metal thin film will affect reflectance?
Jun 13, 2019 · The reflection of the interface of two layers is described by Fresnel's equations. For instance, the reflectance of an Al bulk at 1 micron is around 0.9, this is the reflectance of the …
Why is there emissivity + reflectivity + transmittance = 1?
Aug 29, 2017 · Light incident on a surface is energy, and energy is conserved. It can be split into three fractions: reflected, absorbed, and transmitted. Reflectivity, Absorptivity, and …
optics - How to calculate refractive index from absorbance ...
Nov 10, 2023 · 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 …
Reflectance and Reflectance Color of Metals - Physics Stack …
Aug 27, 2021 · Questions: Why do metals have a specular reflectance color when only the extinction coefficient really varies with wavelength, but the extinction coefficient describes …
How does Titanium dioxide reflect visible and IR lights?
Jan 21, 2021 · I know that titanium dioxide has high reflectance for visible and IR lights, but what is the reason behind this principle?