NF-25C05-40-532 25 mm Dia. N-BK7 Notch Filter; t=5mm 532nm

OptoSigma's NF-25C05-40-532 is a notch filter with a 25 mm diameter, designed to optimally function at a wavelength of 532 nm. This filter is made of N-BK7, a type of borosilicate glass known for its excellent optical properties, manufactured by Schott. The filter's primary role is to transmit light at a specific wavelength while blocking light at adjacent wavelengths, making it an essential component in various optical systems.

The filter's geometry includes a diameter of 25 mm and a thickness of 5 mm, providing a robust and compact design. The physical data of the filter indicates a cut-on wavelength of 0 nm and a cut-off wavelength of 532 nm. This means that the filter starts blocking light from 0 nm and allows light to pass through from 532 nm, effectively filtering out unwanted wavelengths.

The NF-25C05-40-532 is coated with Opt NF-40-532 on both the front and back surfaces. This coating enhances the filter's performance by reducing reflection and increasing transmission, thereby improving the overall efficiency of the optical system. The filter's shape is that of a thin lens, further contributing to its compactness and ease of integration into various optical setups.