Principle
Plane-polarized light is reflected at a glass surface. Both the
rotation of the plane of polarization and the intensity of the
reflected light are to be determined and compared with Fresnel's
formulare for reflection.
Benefits
- see that reflection at a glass surface changes some properties of light
- find out that at special angles, light can be completely polarized upon reflection
- very versatile optical base plate
Tasks
- The reflection coefficients for light polarized perpendicular
and parallel to the plane of incidence are to be determined as a
function of the angle of incidence and plotted graphically.
- The refractive index of the flint glass prism is to be
found.
- The reflection coefficients are to be calculated using
Fresnel's formulae and compared with the measured curves.
- The reflection factor for the flint glass prism is to be
calculated.
- The rotation of the polarization plane for plane polarized
light when reflected is to be determined as a function of the angle
of incidence and presented graphically. It is then to be compared
with values calculated using Fresnel's formulae.
What you can learn about
- Electromagnetic theory of light
- Reflection coefficient
- Reflection factor
- Brewster's law
- Law of refraction
- Polarization
- Polarization level
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