All Questions
5
questions
5
votes
1
answer
177
views
Does the front of a light wave always propagate at $c$ in media
Consider light moving along one dimension at the classical level. I am interested in the situation where a wave front impacts a material with some generic index of refraction $n(\omega)$, and ...
2
votes
0
answers
62
views
How to figure out TM and TE modes based on dispersion relation?
According to this paper (https://doi.org/10.1063/1.5128679), the dispersion relation of hyperbolic materials is as follows:
then it is said, that he first term in brackets in the equation describes a ...
- 21
3
votes
2
answers
285
views
What is the mechanism of transparency of EM?
What happens in transparent materials? Do their molecules oscillate with the same frequency as the EM wave and then reemit in the same direction? Or the light goes through meshes in the bulk?
- 651
2
votes
0
answers
89
views
What determines the penetration of electromagnetic waves?
What is it that determines whether or not an electromagnetic wave can penetrate different materials and how far it can go? For example light can penetrate through glass, but not concrete walls, but ...
user284476
5
votes
6
answers
2k
views
Why doesn't infrared radiation pass through objects?
It cannot be due to Raman scattering because $1$ in $10^7$ photons are Raman scattered. It cannot be Rayleigh scattering because Rayleigh scattering of infrared radiation is very low due to the ...
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