Semrock's BLP01-325R-25 is a Longpass Filter, designed with a circular geometry and a diameter of 25 mm. This filter is made from UVFS material, specifically identified as MAL-1965, and has a thickness of 2 mm.
The BLP01-325R-25 is a best-value longpass edge filter, with a cut-on wavelength of 325 nm. The cut-on wavelength is the point at which the filter starts to transmit light, while the cut-off wavelength is the point at which it stops. In this case, the cut-off wavelength is 0 nm, indicating that the filter allows all wavelengths beyond 325 nm to pass through.
The filter's coating is uniform on both the front and back, with the front coating being Sem-BLP01-325R and the back coating also being Sem-BLP01-325R. This ensures consistent performance from both sides of the filter.
The BLP01-325R-25 is available from Semrock and is currently in stock. For more information, users can visit the product page at https://www.idex-hs.com/store/product-detail/blp01_325r_25.