I What happens if the angle < Brewster's angle?

I
Thread starter garylau
Start date Nov 15, 2016
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Angle Brewster's angle

AI Thread Summary

When the angle of incidence is less than Brewster's angle for TM polarization, the reflected light undergoes a π phase shift due to the properties of the reflection coefficient, particularly ##r_p##. This phase shift occurs because the electric field of the reflected wave interacts differently with the boundary conditions at the interface between two media. The discussion highlights the significance of internal reflection, which happens when the refractive index of the second medium is lower than that of the first. Understanding these concepts is crucial for applications involving polarized light and reflection phenomena. The relationship between angle and phase shift is essential for predicting light behavior in various optical systems.

Nov 15, 2016

garylau

Sorry
i have question for TM polarization.
i don't understand why if the angle < brewster's angle,then the reflected light will experience an pi phase shift?
can anybody explain why?

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Nov 15, 2016

blue_leaf77

Science Advisor

Take a look at these equations, especially ##r_p## which is the (complex) reflection coefficient for TM polarization. In particular, you will be interested in the so-called internal reflection, that is when ##n_2 < n_1##.

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