Plymouth Grating Lab first commercialized Scanning Beam Interference Lithography (SBIL) originally pioneered at MIT to enable production of meter- class multilayer dielectric (MLD) diffraction gratings with exceptional uniformity, high laser damage threshold, and low stress in vacuum. PGL then expanded its technology to include metallic reflection gratings, transmission gratings, two- dimensional gratings, and even focusing gratings that comprise curved lines. Our focus is on gratings for lasers and laser systems with applications in the scientific research, industrial, medical, defense, and semiconductor markets. PGL has developed special expertise not only in grating writing, but also in optical coatings, reactive-ion etching, optical metrology, and precision cleaning, inspection, and handling of large optics.
The following table illustrates specification typical values and limits for the most popular types of PGL gratings.
PGL’s unique capabilities allow us to manufacture gratings with variable periods and groove orientations with the same efficiency, uniformity, and repeatability of our standard, straight-line gratings, thus enabling chirped and focusing gratings. Tell us about your application today.
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