BSW20 Dia:1in 50:50 UVFS Plate Beamsplitter; Coating: 250-450nm; t=5 mm

The BSW20 Dia:1in 50:50 UVFS Plate Beamsplitter is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of optical elements. This beamsplitter is designed with a circular geometry, featuring a diameter of 25.4 mm and a thickness of 5 mm, making it a robust and reliable choice for various optical applications.

The beamsplitter is made of UVFS material, identified as MAL-1965 in the Material ID, and is coated with a specific coating on both the front and back surfaces. The front surface is coated with "tho 50 uv bs 250-450," which is a UV bandpass coating suitable for wavelengths between 250 and 450 nm. This coating ensures high reflection (0.5) and transmission (0.5) at the specified wavelength, providing a balanced split of the incident light.

The back surface of the beamsplitter is coated with "tho uvfs uv bbar," which is a UV bandpass coating that provides broadband reflection in the UV range. This coating ensures that the back surface of the beamsplitter reflects UV light, while transmitting visible and infrared light.

The BSW20 Dia:1in 50:50 UVFS Plate Beamsplitter is available for purchase from Thorlabs' official website, and the link provided indicates that it is currently in stock. This beamsplitter, with its specifications and coatings, is an excellent choice for applications that require precise beam splitting in the UV range.