Diffraction Gratings for Spectroscopy

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Inprentus offers custom blazed diffraction grating masters for spectroscopy applications where optimization of optical efficiency is a priority.  



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Performance - High Grating Efficiency

Inprentus 300 lpmm spectroscopy grating sample was verified to give more than 80% efficiency at design wavelength. The measurement was performed by a third party using an industry standard spectrophotometer.

A modernized method for mechanical ruling of diffraction gratings

Low manufacturing yield has traditionally limited the industry, causing long lead times for grating delivery. The Inprentus method has revolutionized the core manufacturing process for blazed grating production, providing the industry with a valuable new source for high-precision products. Improved specifications include optical bandwidth resolution and enhancements of optical efficiency.

Product Brochure: Spectroscopy Diffraction Grating Product Information

Design to delivery: working with you throughout the process

Inprentus will work with you to design and calculate simulated specifications and assist you with your grating design. Inprentus master gratings are sold with replication rights for use in your company’s products.

Master gratings for ICP-OES applications


Inprentus can manufacture Echelle gratings specifically optimized for high blaze efficiency in a range of wavelengths in the UV to IR region and in a wide variety of sizes and specifications. The master gratings are used as-is or can be replicated for cutting-edge spectroscopy applications. Inprentus works closely with customers to provide custom blaze angles in the grating masters to enable optimized end-replication efficiency.

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Nano-manufacturing Precision Grooves

The 300 lpmm spectroscopy grating sample has been manufactured to have a blaze angle of 10.5° ± 0.2°. An atomic force microscope (AFM) grayscale height map of manufactured grooves is shown (left) along with groove profile in blue.