All Questions
16
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71
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What will be the state of polarization?
When unpolarized light incident on the first polarizer, the light becomes plane-polarized with intensity equal to half of the initial value and the plane of polarization is parallel to the optic axis ...
1
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0
answers
94
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Double refraction in Calcite Crystal
In the above text it is mentioned that the incident light ray travels along the principal section.But any ray which travels along the principal axis should not go through the double refraction. Then ...
1
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0
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67
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How does Dipole coupling affect macroscopic polarizability and refractive index
I have taken some measurements of refractive index (refractometer (commercial Brix meter), nD20 i.e. 20 degrees C and 589 nm) and density of sucrose/water mixtures and also of ethanol/water mixtures.
...
- 313
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2
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336
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If the Brewster's angle is considered to happen with no reflection, then how is the refraction angle considered to be 90°?
So basically my questions are these:
Is the refraction angle always 90 in relation to Brewster's angle?
And if the refraction angle is the angle between the reflected ray and the ray that passed the ...
- 53
1
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2
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2k
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Polarization of light and Brewster's angle in internal reflection
In almost all sources I read so far, Brewster's angle is defined for light incident on an optically denser medium from an optically rarer medium. Is the concept of Brewster's angle applicable when ...
- 5,306
4
votes
1
answer
352
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How do I use a sunstone? How does it work?
I have acquired two pieces of Icelandic Spar (optical calcite) with surface and internal fractures that should be serviceable as sunstones.
I have observed the double refraction and cancelling double ...
- 1,642
1
vote
0
answers
125
views
Will the refractive index of a electrolyte change when chemical reaction happens?
Since polarization is the reason of refraction, then anything that changes the structure of molecule, atom, or electron will present as a change of reflection. Thus, to my understanding, chemical ...
- 31
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2
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730
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A Question About Brewster's Law
In most textbooks I read, they state that when the angle of reflection + angle of refraction = 90, there is maximum polarization. What I don't understand is what maximum polarization means. Does it ...
- 149
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0
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68
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Is refractive index a property of the material or the light ray?
Why does it vary for e-ray and o-ray in nicol prism?
- 11
1
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1
answer
354
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What causes the circular polarization of light from outside Snell's window?
Wikipedia and other sources claim that the internal reflection underwater outside Snell's window is circularly polarized. What is the mechanism that causes this circular polarization?
- 405
1
vote
1
answer
3k
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Double refraction in quarter wave plate and nicol prism
I have read in one of the textbook (local author) that when an unpolarized light is passed through nicol prism (parallel to the long sides of principle section),the light ray splits into two namely ...
- 148
3
votes
2
answers
2k
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Polarized light in single mode fiber
In single mode fiber the light propagates in two orthogonal planes. Input will be linearly polarized light, which state of polarization will be on output and why? And if there will be some different ...
- 31
15
votes
4
answers
11k
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Is true black possible?
Black is the absence of light because it absorbs light, but when we create black paint or black objects, light is always reflected, either in all directions in matte or smoothly in shiny black objects,...
- 151
4
votes
2
answers
1k
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What polarizes a rainbow?
What polarizes the light from a rainbow. I already did some search and couldn't get a clear answer. All I could find was the light is polarized on the direction light is entering. What happens to the ...
- 272
2
votes
2
answers
2k
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Polarization in Nicol prism
My book reads
"When unpolarized light is incident on nicol prism (made of 2 crystals joined by Canada balsam a type of glue) it divides into 2 rays, both rays are plane polarized and electric field ...
- 21