A waveplate or retarder is an optical device that alters the polarization state of a light wave travelling through it. Two common types of waveplates are the half-wave plate, which rotates the polariz
A waveplate mounted in a rotary mount
Thin crystalline film of caesium chloride photographed using a petrographic microscope
Polarization, or polarisation, is a property of transverse waves which specifies the geometrical orientation of the oscillations. In a transverse wave, the direction of the oscillation is perpendicula
Waveplate
…A waveplate or retarder is an optical device that alters the polarization state of a light wave travelling through it. Two common types of waveplates are the half-wave plate, which rotates the polarization direction of linearly…
Circular polarization of oscillations of rubber thread, converted to linear polarization
Color pattern of a plastic box showing stress-induced birefringence when placed in between two crossed polarizers.
Stress in plastic glasses
Photomicrograph of a volcanic sand grain; upper picture is plane-polarized light, bottom picture is cross-polarized light, scale box at left-center is 0.25 millimeter.