Polarizing Beam Splitter

Application ID: 31041

A Gaussian beam is incident on a 45-degree thin-film stack embedded in glass material prisms. The thin-film stack is designed from alternating high and low refractive index materials. The wave will be refracted at the Brewster angle at each internal interface. Thus, mainly p-polarized waves (polarization in the plane of incidence) will be transmitted, whereas mainly s-polarized waves (polarization orthogonal to the plane of incidence) will be reflected. Changing the spot radius for the Gaussian beam modifies the polarization discrimination.

The reflectance and transmittance spectra are calculated for different Gaussian beam spot radii.

The app automatically calculates the phase expressions necessary for the Electromagnetic Waves, Beam Envelopes interface, when the user changes the design parameters.

This application example illustrates applications of this type that would nominally be built using the following products: