The width of a wire grid polarizer must be less than the wavelength of the light being polarized to minimize light scattering. This requirement ensures that the polarizer behaves as a homogeneous object rather than an array of discrete scatterers. The spacing between the wires should be less than the wavelength to allow the electromagnetic field to respond to macroscopic properties, similar to how visible polarizers utilize long-chain molecules to create an anisotropic medium. This design principle is crucial for effective polarization of light.
PREREQUISITESOptical engineers, physicists, and anyone involved in the design and application of polarizing devices will benefit from this discussion.
Andy Resnick said:If I understand you correctly, the spacing between the wires of a wire polarizer need to be less than a wavelength to minimize light scattering.