The 20CGA-645 is a Longpass Filter from MKS/Newport, designed with a 2 x 2 in square shape and a thin lens form factor. This filter is specifically engineered to allow light with wavelengths longer than 645nm to pass through while blocking shorter wavelengths. The cut-on wavelength is set at 645nm, and there is no specified cut-off wavelength, indicating that it blocks wavelengths shorter than the specified cut-on.
The filter boasts a geometry of 50.8mm in width and height, with a thickness of 1.1mm, providing a compact and efficient solution for various optical applications. The front and back surfaces of the filter are coated with the "new 20cga-645" coating, enhancing its performance and durability.
This item is available directly from the vendor and is currently in stock, as indicated by its weblink status. For more detailed information, you can visit the product's webpage at https://www.newport.com/p/20CGA-645.