High Precision BK7 Optical Concave Grating 490-1200 L/mm Diffraction >70%
High-efficiency BK7 concave grating with ruled area up to 70x70mm and 490-1200 L/mm groove density. Ideal for spectrometers, analytical instruments, and optical communications. Custom options available with >70% diffraction efficiency.
Optical concave grating
It has the advantage of being able to constitute a spectroscopic system without any assistance from concave mirrors or similar types of image-forming elements. For this reason, the concave grating is used in a wide range of applications, such as analytical instruments, optical communications, biotechnology, and medical instruments. Spectroscopes incorporating concave gratings are classified roughly into two groups: polychromators or monochromators.
We can provide customers with a variety of replicated grating products such as diffraction gratings, transmission gratings and holographic gratings to meet different needs.
specification of our optical concave gratings as follow:
Material:BK7
Ruled area: <=70 * 70mm
Wavelength range: 200 to 900um
Grooves per mm: 490 to 1,200L/mm
Diffraction: >70%
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