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  • TFPN 90° Plate Polarizer
Mar 2007
CVI Melles GriotRequest Info
CVI-TFPN.jpgCVI Laser's TFPN thin-film plate polarizer works at 45° so the reflected and transmitted beams are separated by 90° and are orthogonally polarized, just like a cube polarizer. It can be used as either a beamsplitter or beam combiner without angle tuning or complicated alignments. The dielectric coating is durable and dense, so there is no wavelength shifting, and it can be done at any visible near-infrared (VIS-NIR) wavelength.


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dielectric coating
A high-reflectance coating consisting of alternating layers of quarter-wave film of a higher refractive index and lower refractive index than the substrate. Such coatings can be made very specific to a reflected wavelength or, by varying the layers' thicknesses or film indexes, spread over a wide wavelength interval.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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