48-901 75 x 75 mm 30:70 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm

This 48-901 Beamsplitter, sourced from Edmund Optics, is a high-quality optical component designed for use in the near-infrared (NIR) spectrum, specifically between 700 and 1100 nanometers. The beamsplitter is rectangular in shape, with dimensions of 75 x 75 mm, and has a thickness of 3mm, providing robustness and stability in its operation.

The beamsplitter is made from N-BK7, a popular optical glass due to its excellent optical properties and wide transparency range. This material is identified by the Material ID "n-bk7 schott" in the item data. The beamsplitter features a 30:70 (R:T) split ratio, meaning it reflects 30% of the incident light and transmits 70%. This ratio is crucial in applications where precise light control is required.

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 optimal reflection and transmission rates within the specified wavelength range.

The beamsplitter's physical data indicates a reflection of 0.3 (30%) and a transmission of 0.7 (70%), aligning with its stated split ratio. This beamsplitter is currently in stock, as indicated by its weblink status, and more information can be found on the Edmund Optics website.