What is a quarter wave board?
The wave plate is a device used to control light polarization. When the light is polarized, it is directed in two axes; The angle between the axes, one is marked with a quick axis and the other by a slow axis is 45 °. The quarterly plate transforms linearly polarized light into circular polarized light and is also repeated. The waveboards generally work by causing the phase shift in the polarized light, so the refractive index is different on each axis. Different materials are used to produce a quarter of the board, which is usually used in displaying, laser, semiconductor and aircraft applications. The polarized light wool is oriented at an angle of 45 ° on the wool axis. The Quatern wave plate is physically designed to create a phase difference of one quarter of the wavelength. Multiples of this increment can also be adapted to multiple plates order.
The light length of the light in the application and the dimensions of the wave plate are important when choosing the right device. A quarterly board is working on the concept of retardance and quartz oftenused as a more retarded material. Quartz components are strong enough to be used with lasers and are usually covered with anti -reflection material for transmission of the most light. They are also made for specific thicknesses and other polishing properties. Sometimes used materials are mica, magnesium fluoride and sapphire.
Quarterly wave pads are used to control lasers' performance and to add optical insulation. They are also used in medical laboratory equipment for body fluid analysis. Generally, they are used anywhere to control polarized light, wave plates are often observed in astronomical and air facilities. Many materials can comprise a quarterly board and whether crystalline materials or polymers are used depends on the application.
application requirements can be met using different types of retarders on the board a quarter of a wave. For example, quartz retarders are involvedWounds according to the desired bandwidth and heat output. Depending on these needs, there are different retarders with multiple orders and zero -order retarders. Achromatic plate with a quarter of wool has materials with better field of view and which are more accurate in terms of wavelengths. Choosing a wave board requires knowing what specifications are best for the application; Understanding optics is also beneficial.