Holographic Gratings 50x50x9.5mm 1800Lines/mm Float Glass

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Home  Products  Holographic Gratings  379522

Holographic Gratings 50x50x9.5mm 1800Lines/mm Float Glass

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Holographic Gratings 50x50x9.5mm 1800Lines/mm Float Glass

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Parameters Efficiency Curve Related Products Description

Size 50x50x9.5mm

Groove Density 1800Lines/mm

Optimized Wavelength VIS

Chromatic Dispersion 0.50nm/mrad@500nm

Substrate Material Float Glass

Surface Quality 60-40

Dimension Tolerance ±0.5mm

Thickness Tolerance ±0.5mm

Efficiency 45%~ 87% @ Peak Wavelength

Clear Aperture 90%

Damage Threshold 350mJ/cm²5 @200ns Pulsed Laser；40W/cm² （CW） Continuous Laser

Genre VIS Gratings

Holographic Gratings 25x25x6mm 1800Lines/mm Float Glass

Holographic Gratings 25x25x6mm 2400Lines/mm Float Glass

Holographic Gratings 50x50x9.5mm 1200Lines/mm Float Glass

Holographic Gratings 50x50x9.5mm 1800Lines/mm Float Glass

Holographic gratings are commonly used in applications that are sensitive to stray light. The substrate is coated with photosensitive material. The substrate coated with photosensitive material is placed between the monochromatic light produced by the laser and the intersecting beam composed of coherent beams, which make the photosensitive material sensitize. The intersecting laser beam produces a series of parallel and equidistant interference fringes, whose intensity varies according to the shape of sinusoidal curve. Since the solubility of photosensitive materials is determined by the light intensity irradiated to them, interference fringes show different light intensity on the surface of photosensitive materials. We can coat a reflective coating on the substrate of holographic grating and use the same process to replicate that used for initial gratings. Because the shape and line spacing of holographic grating are uniform, the stray light is much less than ruled gratings. Usually holographic gratings can adopt profile of two concave grooves, sinusoidal and blazing.Gratings。全息Gratings可以采用两种凹槽轮廓，正弦和闪耀。

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