14-641 15 x 15 mm 50:50 (R:T) N-BK7 Standard Cube Beamsplitter; t=15mm 700-1100nm

The 14-641 is a standard cube beamsplitter, designed and manufactured by Edmund Optics, featuring a 15mm x 15mm footprint and a thickness of 15mm. This beamsplitter is designed to operate within the near-infrared (NIR) spectrum, specifically between 700nm and 1100nm.

The beamsplitter is constructed from N-BK7, a high-quality borosilicate glass, which is known for its excellent optical properties. This material is often used in a variety of optical applications due to its low coefficient of thermal expansion and high homogeneity.

The beamsplitter features 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 makes it ideal for applications where equal distribution of light is required.

The beamsplitter's coating is another notable feature. Both the front and back surfaces are coated with an ideal broadband anti-reflective (AR) coating, which reduces surface reflections and improves transmission. The hypotenuse faces 1 and 2 are coated with EDM NIR R50 T50 and ideal broadband AR coatings, respectively.

The beamsplitter's geometry is that of a cube, which provides superior stability and alignment capabilities compared to other beamsplitter designs. This cube shape also allows for easy integration into optical systems.