CVI Laser PBSH-450-2000-050 Broadband Polarizing Cube Beamsplitter - Wavelength: 450-2000nm- Dimensions: 12.7 x 12.7 x 12.7 mm- Coating Type: Broadband Dielectric- Extinction Ratio Tp/Ts: 500 mJ/cm2 , 20ns, 20Hz; 100 W/cm2 cw at 515nm - From the manufacturer: "Broadband, high efficiency, high extinction ratio separation of s- and p-polarization for visible and near-IR. These broadband, high efficiency cube beamsplitters separate polarizations with an extinction ratio of > 500:1 for transmitted p-polarized light while reflecting > 99.5% of s-polarized light." - This item is NEW. Sealed in original manufacturer packaging. (No returns if sealed is opened.) RS45