Introduction to conventional indexes of wave plate processing

Wave plate principle

wave plate, also known as phase delay plate, is a kind of common polarization power device, and also a kind of quite common optical phase modulator. Its internal structure is based on the birefringence principle of the wafer. The wave plate is a horizontal plane composed of transparent crystals, and its grating is horizontal to its outer surface. The phase of a full wave plate is delayed by 2 π times, so that the polarization of the incident angle light fails to change. The full wave plate is usually selected in the stress meter to expand the wave path difference formed by stress, so that the intervention color appears positive with the adjustment of stress. The manufacturer of the wave plate reminds that the refractive index of the glass in the fast axis direction of the wave plate is low and the speed of light is fast, while the diffraction degree of the slow axis is high and the speed of light is relatively slow

the manufacturer of wave plate reminds us that for negative crystals, electron light is faster than o light. Therefore, the fast axis is in the field of electronic optical loss, the grating field, and the o light vector is oriented on the slow axis; Positive crystals happen to be opposite. When the light passes through the wave plate, the speed difference will lead to the phase difference between the two interacting polarization weights, and then reverse the polarization mode of the light. The phase retardation is determined by the properties of the raw materials, the wall thickness of the wave plate and the wavelength of the incident wave

when the refraction angle is based on different specifications, the probability will show a variety of polarized light. The astigmatic refraction environment is determined by the polarization form of the oblique light, the direction of the grating and the phase difference behind the wave plate. Wave plate manufacturers remind that in cooperation with different types of polarization components, the mutual rotation of various polarization modes of light, the rotation of polarization planes and the preparation of various optical frequencies can be constructed