Beam Splitter Plates

Infrared spectral wedge

Specifications

General Parameters

material Calcium fluoride single crystal
Surface type λ/4@633nm
Parallel difference 30 arc minutes ± 10 arc minutes
surface finish 40/20-60/40
Effective aperture 90%
Diameter error +0.0/-0.25mm
Thickness error ±0.25mm
edge chamfering 0.2-0.5mmX45°
S1 surface spectral film 45 ° incident spectral ratio (R/T) ± 10% average @ 2-8 μ m
S2 surface anti reflective film Nothing

Details

The infrared wedge beam splitter, with its wedge angle and anti reflective film on the back, can reduce the interference of ghost images reflected from the back surface. High precision substrates ensure the accuracy of reflected and transmitted light wavefront.
Spectral flat plates are usually used at a 45 ° tilt, with one side coated with a spectral film and the other side coated with an anti reflective film. It can separate incident light into two parts: reflected light and transmitted light. Spectral flat sheets are lightweight, reasonably priced, and relatively easy to produce. According to different wavelengths and polarization directions, light can be split according to different light intensity ratios, and applied in optoelectronic sensing devices such as optical instruments, biochemical and medical instruments.
Guangtan Intelligent provides wedge-shaped spectrometers with multiple beam splitting ratios, and anti reflective films including UV, VIS, and NIR.
Guangtan Intelligent not only provides a large number of spot standard spectral prisms, but also can customize spectral prisms according to your needs.
Precautions for use:When the surface of the spectroscope is dirty, a dust-free wiping paper dipped in alcohol can be used to wipe the surface of the lens. Do not use cloth, paper, or water with a rough surface to wipe, otherwise it will damage the surface.
Note: This series is only applicable to non polarized light splitting. Beams with certain polarization states (partially polarized light, linearly polarized light, circularly polarized light, elliptically polarized light) will affect the splitting ratio.
     

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