68-380 75 x 75 mm 20:80 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm

The 68-380 75 x 75 mm 20:80 (R:T) N-BK7 Plate Beamsplitter is a high-quality optical component sourced from Edmund Optics. This beamsplitter is designed for use in the near-infrared (NIR) spectrum, specifically between 700 and 1100 nanometers.

The beamsplitter features a rectangular base shape with dimensions of 75 x 75 mm and a thickness of 3mm. It is made from N-BK7, a popular optical glass known for its excellent transparency and low auto-fluorescence. This material is identified by the vendor as "n-bk7 schott", indicating its compliance with the Schott glass standards.

The beamsplitter's coating is another notable feature. The front surface is coated with EDM 68-364, a coating specifically designed to enhance the beamsplitter's performance in the NIR spectrum. This coating results in a beam split ratio of 20:80 (R:T), meaning that 20% of the incident light is reflected while 80% is transmitted.

The physical data of the beamsplitter indicates that the reflection at the beamsplitter's front surface is 0.2, while the transmission is 0.8. This data is consistent with the specified beam split ratio and further highlights the beamsplitter's performance in the NIR spectrum.

According to the vendor's website, this item is currently in stock, making it readily available for immediate use. The website also provides further technical details and specifications, which can be accessed via the provided weblink.