Planar scribing grating

• Material: soda-lime glass
• Optional density: 75-2400L/mm
• Diffraction efficiency: up to 60%~80%

       Plane Ruling Grating can divide incident multispectral light into diffracted light emitting from different directions, and is widely used in various spectroscopic instruments and many fields including metrology, radio astronomy, information processing, integrated optics and optical communication. Its advantage is that the diffraction efficiency is high, especially when it is located at the wavelength of the flare angle, the diffraction efficiency can even reach 80%-90%, and the disadvantage is the presence of ghost lines and high stray light.

Planar scoring gratings are reproduced from high-precision parent gratings. The grating replication process is as follows: a series of dense parallel lines with equal spacing and line width (often called the "master ruler") are engraved on an aluminum-coated optical substrate, and then a high-precision interferometry driver is used to control a diamond knife to cut on the substrate according to the set spacing and angle to form a jagged groove (commonly known as the flare angle) to obtain the mother grating. When copying, a thin film layer is first deposited on the master plate in vacuum, then a layer of aluminum film is plated on the separation layer, and then an epoxy layer is plated on the top layer to copy the groove surface, and finally the copied grating is separated from the mother grating, and the plane scribing grating is obtained.

Dimension-labs offers a wide range of planar scribing gratings (specific sizes and parameters can be filtered from the details below) to meet your needs for a wide range of applications.