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  • Can reflection result in plane-polarized light if the light is incident on the interface from the side with higher refractive index?

Can reflection result in plane-polarized light if the light is incident on the interface from the side with higher refractive index?

Answers (1)

If Brewster’s angle is equal to the incident angle, then the transmitted light is slightly polarized, while the reflected light is plane-polarized.

Polarisation by reflection occurs when the angle of incidence is Brewster's angle.

i.e. \tan i_R = ^1 \mu_2 =\frac{\mu_2}{\mu_1} \; where\; \mu_2 < \mu_1

When the light rays travel in such a medium, the critical angle is

\sin i_e = \frac{\mu_2}{\mu_1} \; where\; \mu_2 < \mu_1\\\\ As \; \left | \tan i_B \right |>\left | \sin i_e \right | for \; large \; angles\; i_B>i_e

Thus the polarization by reflection occurs definitely.

 

Posted by

Gurleen Kaur

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