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seen Jul 2 '13 at 20:49

undergrad physics student


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awarded  Popular Question
Jul
2
awarded  Curious
Jan
29
awarded  Popular Question
Oct
27
awarded  Yearling
Jun
25
asked 3D coherence of light speckles- difference between Airy and gaussian speckles
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6
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27
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Jul
20
accepted How to compute the intensity of a polarized wave going through a polaroid?
Jul
20
comment How to compute the intensity of a polarized wave going through a polaroid?
Thank you! In the mean time I had figured that out, but nonetheless good answer.
Apr
12
accepted Intuition behind the concept of heat
Apr
11
asked Intuition behind the concept of heat
Apr
10
accepted Physical interpretation of Parseval's theorem
Apr
8
asked Physical interpretation of Parseval's theorem
Apr
8
accepted How fast is heat transferred by conduction?
Apr
5
asked How fast is heat transferred by conduction?
Mar
3
accepted Can the Lorentz force expression be derived from Maxwell's equations?
Mar
3
accepted How is this classical “paradox” resolved in electromagnetism?
Feb
23
comment How to compute the intensity of a polarized wave going through a polaroid?
So, I suspect that if you plot the intensity as a polar plot of the angle you get again an ellipse: I mean you plot data of this type $(r,\phi)$=(intensity, angle of orientation of the polaroid). Is this true? And what relation is there between this ellipse and the one of the electric field?
Feb
23
comment How to compute the intensity of a polarized wave going through a polaroid?
I'll try to explain myself better. Suppose you have some elliptically polarized light. You also have a polaroid, that is used as analyzer. You vary the angle of the polaroid with respect to the plane of polarization of the incident light. Behind the polaroid the intensity of the light going through is measured by a photodiode. I suppose that, since the electric field goes around an ellipse, when the polaroid is oriented along the major axis the intensity is big; when it is oriented along the minor axis it is less.