47-243 50 x 50 mm 30:70 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm

The 47-243 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, a reputable vendor known for its high-quality optical components.

The beamsplitter is made from N-BK7 glass, a popular material in optical systems due to its excellent optical properties and high damage threshold. The glass has a thickness of 3mm, providing robustness and stability in its operation.

The beamsplitter features a 30:70 (R:T) split ratio, meaning that it reflects 30% of the incident light and transmits 70%. This ratio is consistent across the specified NIR spectrum, ensuring predictable and reliable performance.

The front surface of the beamsplitter is coated with EDM 48-389, 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 is shaped as a thin lens, which not only reduces its weight and dimensions but also minimizes optical aberrations. This makes it suitable for use in compact and high-precision optical systems.