NPCH-20-4880 20 x 20 mm 50:50 (R:T) N-BK7 Non-polarizing Cube Beamsplitter; t=20mm 488nm

The NPCH-20-4880 is a non-polarizing cube beamsplitter offered by OptoSigma, designed for applications that require a 50:50 reflection to transmission ratio. This beamsplitter is crafted from high-quality N-BK7 glass from Schott, ensuring durability and reliability.

The beamsplitter features a 20 x 20 mm aperture, making it suitable for a wide range of optical systems. The cube geometry, with each side measuring 20 mm, allows for easy integration into various setups. The beamsplitter's coating is another notable feature, with both the front and back, as well as the left and right surfaces, coated with ideal broadband anti-reflection (AR) material. This coating enhances the beamsplitter's performance across a broad spectrum of wavelengths.

The hypotenuse faces of the beamsplitter are also treated with specific coatings. Hypotenuse 1 is coated with an Opt NPCH-4880 coating, while Hypotenuse 2 is coated with an ideal broadband AR coating. This unique coating configuration ensures optimal performance at the specified wavelength of 488 nm.

The NPCH-20-4880 boasts a reflection of 0.5 and a transmission of 0.5 at the specified wavelength, making it an ideal choice for applications that require equal distribution of light. The beamsplitter is currently in stock and available for immediate purchase, as indicated by its valid weblink status.