Planar Holographic Grating

Holographic gratings are commonly employed in applications demanding minimal stray light. A photosensitive material is coated onto the grating substrate; the coated substrate is then placed between two intersecting, monochromatic, and coherent laser beams, thereby exposing the photosensitive layer.

A holographic grating is a high-performance diffraction grating fabricated using optical interference principles. Its defining feature is exceptionally low stray light generation—making it especially suitable for spectral analysis applications where an ultra-high signal-to-noise ratio is critical.

Parameter Specification
Groove Density 600–4500 lines/mm
Blazed Wavelength Range 150 nm – 1.0 µm
Substrate Material Optical Glass K9
Standard Reflective Coating Aluminum
Aluminum ±0.5 mm
Grating Type Reflective Blazed Diffraction Grating
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