68-401 12.5 x 17.5 mm 60:40 (R:T) N-BK7 Plate Beamsplitter; t=3mm VIS 400-700nm

The 68-401 is a high-quality beamsplitter from Edmund Optics, designed for use in the visible light spectrum, specifically between 400 and 700 nanometers. This beamsplitter is rectangular in shape, with dimensions of 12.5 x 17.5 mm, and has a thickness of 3mm.

The beamsplitter is made from N-BK7, a popular optical glass from Schott, known for its excellent optical properties and high damage threshold. This material is particularly suitable for applications in the visible and near-infrared spectral ranges.

The coating on the front surface of the beamsplitter is EDM 68-399. This coating is designed to optimize the performance of the beamsplitter in the specified wavelength range. The beamsplitter has a reflection ratio of 60:40, meaning that approximately 60% of the incident light is reflected, while the remaining 40% is transmitted.

This beamsplitter is a thin lens type, which means it is designed to minimize optical path length differences and reduce unwanted reflections. This makes it an ideal choice for applications where high precision and low loss are critical, such as interferometry, Fourier transform spectroscopy, and holography.

According to the vendor's website, the beamsplitter is currently in stock, making it readily available for immediate use. For more information, including detailed specifications and purchasing options, please refer to the provided weblink.