What is the difference between reflectivity and reflectance?
Aug 2, 2023 · What is the difference between reflectivity and reflectance? Ask Question Asked 2 years, 4 months ago Modified 2 years, 1 month ago
Why do metals have high optical reflectivity? - Physics Stack …
Aug 26, 2018 · Why do metals have high optical reflectivity? Ask Question Asked 7 years, 4 months ago Modified 6 years, 7 months ago
Why is there emissivity + reflectivity + transmittance = 1?
Aug 29, 2017 · Reflectivity, Absorptivity, and Transmissivity are defined as being fractions of the original incident light. So you could have 30% reflected, 10% absorbed, and then you would …
Reflectivity with complex refraction indices - Physics Stack Exchange
Mar 24, 2017 · in case of air/glass n n is real, but for, say, semiconductors or metals, where radiation is absorbed, n n is a complex number, with n–– =nr − ik n = n r i k. k k is described as …
electromagnetic radiation - The rule breaker, emissivity
Apr 3, 2013 · The emissivity and reflectivity only have to add up to one at the same wavelength. So if the emissivity is high for infra-red that doesn't clash with the reflectivity being high for …
quantum mechanics - How do metals reflect electromagnetic …
May 6, 2020 · Microwaves, for example, can be reflected off metallic surfaces. This seems counter-intuitive, since the metal's electrons could interact with the electric field component of …
optics - Do mirrors reflect all wavelengths of the electromagnetic ...
Sep 2, 2016 · Some gammas are well in the low keV range, and x-ray mirrors would reflect them just fine. Further, this really doesn't address what factors drive the reflectivity of a material. For …
Why does the polarization type - Physics Stack Exchange
Aug 26, 2020 · 1 So the Fresnel equations can describe the reflectivity and transmission of s s and p p polarized light and show that there is a different relationship between angle of …
UV reflective surfaces - Physics Stack Exchange
Wiki's reflectivity site illustrates the albedo for Al, Au and Ag. The reflectivity of Al is ~92% over the 200-400 nm range.
Complex Refractive Indices, Absorption, and Transparency
Feb 20, 2024 · A complex refractive index is defined as $n = n_0 + \kappa$ where $n_0$ is the "standard" refractive index, and $\kappa$ is the optical extinction coefficient. The ...