68-394 50 x 50 mm 40:60 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm

The 68-394 is a 50 x 50 mm rectangular beamsplitter, designed for use in the near-infrared (NIR) spectrum, specifically between 700 and 1100nm. This beamsplitter is sourced from Edmund Optics and is currently in stock, as indicated by its weblink status.

The beamsplitter is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high homogeneity. It features a thickness of 3mm, which is relatively thin, making it suitable for applications where space is a constraint.

The beamsplitter has a 40:60 (R:T) ratio, meaning that it reflects 40% of the incident light and transmits 60%. This ratio is consistent across the entire NIR spectrum, providing a reliable and predictable performance.

The front surface of the beamsplitter is coated with EDM 68-382, a coating specifically designed to enhance its performance in the NIR spectrum. This coating ensures high transmission and low reflection, making it ideal for applications that require efficient light splitting.

The beamsplitter's shape is that of a thin lens, which further contributes to its space-saving design. Despite its thinness, it maintains the physical data expected of a beamsplitter, with a bs reflection of 0.4 and a bs transmission of 0.6.