Aberration corrected Flat field holographic concave grating

Concave Grating 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. 

China star optics can provide customers with a variety of replicated grating products such as Plane Ruled Diffraction Grating, Plane Reflection Grating and Holographic Grating to meet different needs.Plane Ruled Reflective Gratings are available with blaze wavelengths 500 nm or 1000 nm and optimized for use at 350-800 nm or 700-1600 nm respectively. Plane Ruled Reflective Gratings are characterized by a superior efficiency at their design wavelength compared with holographic grating. Plane Reflection Grating is an excellent choice for spectroscopy setups using silicon detectors or fiber-optic telecommunication applications for which higher reflectivity in NIR/IR spectral regions is required. 

Custom sizes of Plane Ruled Grating, Holographic Concave Grating and Holographic Blazed Grating are available on request. Mark Diffraction Grating for orientation and optical direction.Maximum ruled area is up to 300x300 mm2 for plane ruled diffraction gratings. For replicated diffraction and transmission gratings the ruling density can be from 20 grooves per millimeter to 2400 grooves per millimeter, wavelength from 0.2 micron to 25 microns. 

Note: The surface of the plane ruled grating and holographic grating are very sensitive and should be handled carefully.

Holographic grating:
Specification:
Ruled area: <=70 * 70mm 
Wavelength range: 0.2-0.8um 
Grooves per mm: 1,200 lines/mm holographic grating to 3,600 Lines/mm holographic gratings
Diffraction: >70% 
Plane Ruled grating:
Specification:
Ruled area: <=70 * 70mm 
Wavelength range: 0.2-15um 
Grooves per mm: 50 to 2,400 Lines/mm plane ruled diffraction grating
Diffraction: >70%
Concave grating:
Specifications:
Ruled area: <=70 * 70mm 
Wavelength range: 200 to 900um 
Grooves per mm: 490 to 1,200 Lines/mm holographic concave grating
Diffraction: >70%