high-performance polka-dot pattern Beam Splitters

Beam Splitters

Our beam splitter patterns are ideal for numerous optical systems. A beam splitter is a device for dividing a beam of light or other electromagnetic radiation into two or more separate beams.

Opto-Line typically utilizes vacuum deposited aluminum dot array patterns which can be provided on ultraviolet grade fused silica or conventional glass substrates. The patterns often have standard 50/50 reflection-to-transmission ratios; however, any ratio can be achieved by varying size and spacing of the dots. They demonstrate negligible sensitivity over a wide range of angles and are useful for splitting light beams from divergent, broadband radiant sources.

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Offering a distinct advantage over standard dielectric beamsplitters, Polka-Dot Beamsplitters have a constant reflection/transmission ratio over a large spectral range. The UV grade fused silica substrate has a vacuum deposited enhanced aluminum coating in fixed square sized apertures. Incident light is reflected by the coated area and is transmitted through the surrounding uncoated substrate. Since Polka-Dot Beamsplitters are not angle sensitive, they are ideal for splitting energy from a radiant light source.

Polka-Dot Beamsplitters offer no significant divergence from diffraction, nor are there performance issues with polarized sources. These beamsplitters are ideal for use with broadband, extended sources, such as tungsten, halogen, deuterium, and xenon lamps, and for use in monochromators, spectrophotometers, and other optical systems.

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We'd love to hear from you. Please tell us more about your custom optical pattern needs.

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