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Non-Paraxial Polarizer and Stokes Pa

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Non-Paraxial Polarizer and Stokes Parameters
Time: 2018-11-15 20:59Source: infocrops.comWriter: infocrops
Polarization effects often play an important role in modern optical research and engineering due to the vectorial nature of the electromagnetic field. Linear polarizers (e.g. wire grid polarizer) are probably the most commonly used optical elements for the manipulation of the polarization state. Although in most cases polarizers are designed for paraxial situations, they are also used in non-paraxial setups, e.g. in the focal region behind a high-NA lens or for the measurement of the Stokes parameters behind a highly tilted polarizer. In VirtualLab Fusion we provide a model for polarizers in non-paraxial cases. Moreover the simulation results obtained with VirtualLab show good agreement with the reference.
 
Polarizer in Focal Region
 
To simulate a polarizer in a non-paraxial setting, an idealized model is implemented in VirtualLab, and the effect of a polarizer in the focal region is presented.
 
 
Stokes Parameters behind Tilted Polarizer
 
Using an idealized non-paraxial polarizer model, the interaction of a polarizer with incident waves from different angles is investigated, and the results are characterized by using Stokes parameters.
 
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