Most laser sources produce Gaussian beams that diverge as they propagate. This natural spreading limits their effectiveness in applications that require light to remain concentrated over long ...

Knight Optical has been providing our customers with precision optical flats for decades, either from our stock catalogue as a quick solution, or custom optical flats manufactured to the customers’ ...

Two parallel optical surfaces often exhibit colorful fringes along the lines of equal thickness because of the interference of light. This simple phenomenon allows one to observe subwavelength ...

Optical Flats are primarily used as a reference surface to determine the flatness of an unknown work surface. With one, or two, surfaces that are precision polished with a high-quality surface finish, ...