
optics - Effective Refractive Index - Physics Stack Exchange
Can some one please explain in simple words that what is effective refractive index? How it is different from the refractive index? And how we can calculate the effective refractive index?
visible light - Critical Angle Formula - Physics Stack Exchange
May 20, 2020 · The formula is given by n = 1 sin(C) n = 1 sin (C), n n is the refractive index of the denser medium, C is the critical angle. From this formula, it seems to be that we are …
What is polytropic index? - Physics Stack Exchange
What is polytropic index? What is the connection between it and work of an adiabatic system? I tried surfing but didn't able to find a proper answer for that.
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 …
Obtaining both relative permittivity and permeability from …
Jun 25, 2021 · As stated in the question, the refractive index is related to the permittivity and permeability. In fact, they contain the same information about the material, and which one is …
Refractive Index formula for denser to rarer medium
-1 The more conventional formula for calculating the refractive index is: n21 = sinx1 sinx2 n 21 = sin x 1 sin x 2 so basically the refractive index of n2 n 2 with respect to n1 n 1 equals sinx1 …
Calculate the effective refractive index from group index
Jan 8, 2022 · I'm currently trying to calculate the effective refractive index $n_ {eff}$ of waveguides using the (measured) group index $n_g$ and the wavelength $\lambda$. I started …
Real and imaginary parts of dielectric constant vs refractive index?
5 The issue here is how much the refractive index n n tells you about dissipation. As you rightly said, the imaginary part of n n, which depends on both real and imaginary parts of ϵ ϵ, leads to …
optics - Refractive index of water - Physics Stack Exchange
Dec 2, 2022 · Does that mean that diamond is a linear homogeneous medium, but water isn't? Is that the reason why the formula does not work for diamond? If so, then why is water not a …
Effective refractive index calculation of fiber core
The "effective refractive index" of a fiber would be an average of its refractive indices that characterizes the average propagation velocity in the fiber. The problem with that kind of …