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3 votes
2 answers
3k views

Brewster Angle - what is the polarization state of the transmitted wave?

When unpolarized light is incident at Brewster's angle, what I understand is that the reflected wave is S-polarized. What is the polarization state of the transmitted (refracted) part of the wave?
4 votes
1 answer
4k views

What are the properties of the partially polarized light on refraction?

When a ray of ordinary light is passed on the water's surface, the reflected light will be completely polarized (vibrations in one plane). My question is what will be the plane of vibration in the ...
12 votes
4 answers
6k views

Why does light not polarise off metallic surface?

I am aware that light partially polarizes upon reflection off a non-metallic surface, however, why is it that this only occurs for non-metallic surfaces?
0 votes
0 answers
71 views

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 vote
0 answers
95 views

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 vote
0 answers
67 views

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. ...
15 votes
4 answers
11k views

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,...
0 votes
0 answers
32 views

What is an example of experimental confirmation of Fresnel equations?

I have been reading about Fresnel equations, but I am struggling to find a single experiment where it was experimentally demonstrated that indeed polarised light follows the function predicted by ...
4 votes
2 answers
1k views

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 ...
1 vote
2 answers
2k views

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 ...
0 votes
2 answers
337 views

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 ...
4 votes
1 answer
353 views

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 vote
1 answer
316 views

Polarization by reflection - Brewster's angle

When incident light hits an interface of a dielectric surface at the Brewster angle, I understand that it will result in the generation of a perfectly polarized(horizontally) reflective ray and a ...
2 votes
2 answers
155 views

Electromagnetism Permeability of vacuum [duplicate]

How vacuum could have electromagnetism Permeability when there is no molecule in it. (Permeability of other medium get describe with effect of their polar or magnetic molecule)
0 votes
1 answer
2k views

Why exactly does light bend when it enters a different medium? [duplicate]

Simply: what happens to the electric(and magnetic) fields when it enters the medium? How does it interact with the molecules and how this interaction leads to the bending of light?

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