This is a BK7-NPBSC-20-420-700 20 x 20 x 20 mm N-BK7 Broadband Non-Polarizing Cube Beamsplitter, designed for use in the 420-700nm wavelength range. The beamsplitter is sourced from Simtrum, a reputable vendor in the optical industry.
The beamsplitter is a cube-shaped optical element, with each side measuring 20 mm. This compact design makes it suitable for various applications where space is a constraint. The beamsplitter is made of N-BK7, a high-quality glass material known for its excellent optical properties. This specific beamsplitter is designed to reflect 50% of the incident light (bs reflection: 0.5) and transmit the remaining 50% (bs transmission: 0.5).
The beamsplitter's coating is another notable feature. Both the front and back surfaces are coated with ideal broadband anti-reflective (AR) coating, which reduces unwanted reflections and improves transmission. The left and right surfaces also have the same ideal broadband AR coating.
The hypotenuse faces of the beamsplitter are also coated. The first hypotenuse face (hypotenuse 1) is coated with a Sim BB-NPBS 700 45 coating, designed for broadband non-polarizing beam splitting. The second hypotenuse face (hypotenuse 2) is coated with the ideal broadband AR coating, similar to the other surfaces.
According to the vendor's information, this item is currently in stock and available for immediate purchase. For more detailed information, you can visit the vendor's website through the provided weblink.