NPCH-15-7800 15 x 15 mm 50:50 (R:T) N-BK7 Non-polarizing Cube Beamsplitter; t=15mm 780nm

The NPCH-15-7800 is a non-polarizing cube beamsplitter offered by OptoSigma, designed for applications that require a 50:50 (R:T) split ratio at a wavelength of 780nm. This beamsplitter is constructed with N-BK7 Schott glass, a popular choice for its high homogeneity and excellent transmission properties in the visible and near-infrared regions.

The beamsplitter features a 15 x 15 mm aperture, providing a generous area for beam manipulation. The cube geometry, with dimensions of 15mm x 15mm x 15mm, offers a robust and compact design, making it suitable for various optical systems. The front, back, left, and right surfaces are coated with ideal broadband anti-reflection (AR) coatings, minimizing unwanted reflections and ensuring high transmission.

The hypotenuse surfaces, labeled as hypotenuse 1 and hypotenuse 2, have specific coatings tailored for this beamsplitter's unique functionality. Hypotenuse 1 is coated with an Opt NPCH-7800 coating, while hypotenuse 2 features an ideal broadband AR coating. These coatings facilitate the desired 50:50 reflection and transmission ratio at the specified 780nm wavelength.