CSMH-30-550 30 x 30 mm 50:50 (R:T) N-BK7 Dielectric Half-Mirror Cube Beamsplitter; t=30mm 400-700nm

The CSMH-30-550 is a 30 x 30 mm 50:50 (R:T) N-BK7 Dielectric Half-Mirror Cube Beamsplitter, designed and manufactured by OptoSigma. This beamsplitter is part of the Cube Beamsplitters category, featuring a dielectric coating that ensures high reflectivity and transmission across a broad spectrum.

The beamsplitter's geometry is defined by its 30 mm sides, forming a cube shape. The physical data specifies a 50:50 reflection-to-transmission ratio, meaning that approximately half of the incident light will be reflected, while the other half will be transmitted. This ratio is consistent across the 550 nm wavelength, which falls within the visible light spectrum.

The material used for this beamsplitter is N-BK7, a type of borosilicate glass manufactured by Schott. This material is known for its excellent optical properties, making it a popular choice for various optical applications.

The coating applied to the beamsplitter consists of ideal broadband AR (anti-reflective) coatings on the front, back, left, and right surfaces. Additionally, the hypotenuse 1 surface features an opt CSMH-550 coating, while the hypotenuse 2 surface has an ideal broadband AR coating. These coatings are designed to minimize surface reflections and optimize the beamsplitter's performance.