Tuesday, 22 March 2016

optics - electric field of unpolarized light after reflect?


Reflection and transmission (Fresnel equation) of polarized light are treated in many optics or electromagnetism books.


If Es and Ep is incident electric field with s-polarization and p-polarization, respectively, reflected electric field would be Es=rsEs or Ep=rpEp, where r is reflection coefficient and means reflected field.


Then electric field of any polarized light can be calculated by decomposition.



For instance, since E45=12(Ep+Es), E45 would be 12(Ep+Es)


However, how can I express electric field of reflected unpolarized light?




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