35-953 25 x 38 mm 70:30 (R:T) N-BK7 Plate Beamsplitter; t=1mm VIS 400-700nm

The 35-953 is a 25 x 38 mm Plate Beamsplitter, a crucial component in various optical systems. Manufactured by Edmund Optics, this beamsplitter is designed for the visible spectrum, specifically for wavelengths between 400 and 700 nm.

The beamsplitter is made of N-BK7, a high-quality borosilicate glass known for its excellent optical properties. This material is particularly suitable for applications in the visible spectrum due to its low absorption and dispersion. The beamsplitter has a thickness of 1 mm, making it a thin lens, which is beneficial for minimizing unwanted reflections and maintaining a compact system design.

The beamsplitter's coating, edm 48-394, is applied to the front surface. This coating is designed to achieve a 70:30 (R:T) split, meaning that 70% of the incident light is reflected, while 30% is transmitted. This ratio is often used in applications where a balance between reflected and transmitted light is required.

The beamsplitter's rectangular shape, with a width of 25 mm and a height of 38 mm, provides flexibility in system design, allowing for efficient use of space. The beamsplitter's physical data indicates that the reflection and transmission coefficients are 0.7 and 0.3, respectively, aligning with the specified 70:30 (R:T) split.