All Questions
Tagged with optical-materials solid-state-physics
8
questions
0
votes
1
answer
104
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Why can you not create a LED equivalent by illuminating a colored plastic casing?
I would first like to apologize if this is a dumb question.
I understand the physics of color sufficiently well. You have an incoming photon that intercepts an electron on the atom, the electron gets ...
- 165
3
votes
2
answers
283
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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
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1
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3k
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Obtaining both relative permittivity and permeability from refractive index
The complex refractive index $\tilde{n}$ is related to the relative electric permittivity and the magnetic permeability with the relation
\begin{equation}
\tilde{n} = n + \mathrm{i} k= \sqrt{\...
- 2,302
31
votes
3
answers
4k
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If we repeatedly divide a colorful solid in half, at what point will the color disappear?
Suppose I have some colorful solid, which I cut into two halves (both are identical). Take the first and cut it into two parts, and then repeat this again and again. I know that a single atom doesn't ...
- 11.9k
2
votes
2
answers
78
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Is magneto-optic Kerr effect discernible for material with natural optical activity?
Magneto-optic Kerr effect requires a system with internal magnetism or external magnetic field and exhibits, say, circular dichroism for reflection measurements. Natural optical activity can have ...
- 3,701
3
votes
0
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141
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Identifying diagrams for optical processes
I was reading some papers on the study of the optical properties of some metals and came upon these conference proceedings by Hopfield from 1972. They are on the study of the infrared properties of ...
- 383
3
votes
1
answer
70
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Where to find known dielectric functions of materials?
I've done a lot of experimental work in materials science and solid-state physics, but I'm currently venturing into the computational realm. I'm trying to compute optical constants ($n$ and $k$) for a ...
2
votes
3
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1k
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What is so special about calcite that it has double refraction?
In this video is explained how the double refraction occurs. But it explains that if the ordinairy ray is horizontal and the extraordinairy is vertical that the first one gets less delayed than the ...
- 3,348