The role of depolarization beam splitter prism is to divide the incident light intensity according to a certain reflection and transmission ratio, so it is an ideal beam splitter in controlling laser beam applications. Polarization beam splitter (PBS) is used to split the incident light according to a certain percentage of reflected and transmitted light according to the corresponding polarization state of light. It is mainly used in the laser research field and the corresponding optical instrument products. When the spectroscope is stored, it should be placed in clean capacitor paper or special lens cleaning paper and wrapped. The storage temperature should be about 23 ℃, and the humidity should not be higher than 40%. It is better to put it in a dry storage cabinet. The purpose of using solvent is to dissolve the adhesive attachment in the residue on the spectroscope surface. A spectroscope is the use of a dispersion element (prism or grating) to divide white light into monochromatic light of different wavelengths.
How are spectroscopes classified?
According to the physical appearance of the lens, the cube type spectroscope is composed of two 45 ° right angle triangular prisms. The beam splits on the prism bevel (the bevel is semi transparent after coating or special treatment). Plane type spectroscope, thin semi lens with uniform (equal or linear) thickness (one side of which is coated or specially treated in a semi transparent state). According to the beam splitting interface principle: non polarized, the incident beam partially reflects on the semi transparent surface, and partially transmits to form two beams of light. The light source intensity is separated according to the proportion of the semi transparent surface (transmittance: reflectivity). Except for the light intensity, other properties are the same as the incident light. Polarization type, the incident beam is on the semi transparent surface, which is composed of several layers of polarizers. After several times of reflection reflection process, the incident beam is separated according to the polarization phase. The light source intensity is separated according to the proportion (transmission polarization angle range: reflection polarization angle range). Except for the light intensity, the polarization state of the separated two beams of light is different. The advantage of the 45 ° polarization splitter is that the splitter is an optical element that divides a beam of light into two beams according to a certain reflection and transmission ratio.
A spectroscope is an optical device that can divide a beam of light into multiple beams. There are mainly two kinds of splitters: narrowband and broadband. They can divide the input beam into 1:1 light splitting according to reflection and transmission, and have the same wavelength characteristics. The optical path of the beam splitter depends on the incident angle and the thickness of the plate. They are mainly used in high-power laser systems. Color separation prism is a prism that can decompose light into two beams of light with different wavelengths (colors). It is usually composed of one or more prisms according to the wavelength selectivity of light or the reflection and refraction of optical coatings. The desired wavelength can be selected. In other words, some surfaces of the prism are used as dichroic filters and beam splitters in many optical instruments. One application of color separation prism is digital photography or video camera. A tricolor prism group is composed of two dichroic prisms, which can be divided into red, green and blue combinations, so it can be used as a CCD array.
Beam splitter is a kind of coated glass. One or more thin films are coated on the optical glass surface. When a beam of light is projected onto the coated glass, the beam is divided into two or more beams by reflection and refraction. Beam splitter is mainly used to divide the incident beam into two beams of light with a certain intensity ratio, namely, transmission and reflection. There are two types of beam splitters with fixed beam splitting ratio and variable beam splitting ratio. The variable beam splitting ratio beam splitting mirror can be divided into step and continuous transients. Beam splitter is usually used at an angle, which can easily separate incident light into reflected light and transmitted light. If the reflected light and transmitted light have different spectral components, or different colors, this beam splitter is usually called a dichroic mirror. If a beam of light is divided into two beams with the same spectral composition, that is, in a certain wavelength area, such as the visible light area, it has the same transmittance and reflectance ratio for each wavelength, so the reflected light and transmitted light are neutral. This beam splitter is called neutral beam splitter. Neutral beam splitter with transmission and reflection ratio of 50/50 is commonly used. Beam splitter is mainly used to divide the incident beam into two beams of light with a certain intensity ratio, namely, transmission and reflection.
Polarization beam splitting prism can divide the incident non polarized light into two perpendicular linearly polarized beams. The P polarized light passes through completely, while the S polarized light is reflected at an angle of 45 degrees, and the outgoing direction is at an angle of 90 degrees with the P light. The polarizing beam splitter prism is glued by a pair of high-precision right angle prisms, and the bevel of one of the prisms is coated with a polarizing beam splitter medium film. Optical splitters are widely used in image science, laser measurement and other fields. It is an optical device that can split a beam in two. The polarization beam splitter prism is made of a pair of high-precision right angle prisms. The bevel of one prism is coated with a polarization beam splitter medium film. The polarization beam splitter is a kind of beam splitter sensitive to the polarization state of light, which can be used to split or combine laser beams of the same wavelength, or separate P polarized light and S polarized light. The spectroscope, also known as the splitter, is an important part in the optical interferometer. The function of the experimental broadband beam splitter prism is just opposite to that of the beam combining mirror. The beam splitter can make some light pass through the filter and reflect other light.
(1) 45 ° polarization beam splitter. The 45 ° polarization beam splitter is mainly used to separate the S and P polarized light. The reflected light and the incident light are incident at an angle of 45 °, forming a 90 ° angle. This polarizer is suitable for high power lasers.
(2) 56 ° polarization splitter, 56 ° polarization splitter is mainly used to separate S and P polarized light, and the beam is incident at Brewster angle. This polarizer is suitable for high power lasers.
(3) Lateral displacement spectroscope prism, which can divide the incident light into two parallel outgoing beams. The incoming and outgoing surfaces of the prism are coated with antireflection coating, and the bonding surface is coated with spectroscope.
(4) Ultra thin light splitting flat, ultra-thin light splitting flat has the advantages of eliminating ghost and reducing optical path offset in the application process.
