High quality equilateral dispersing prism for wavelength separation; N-BK7, UV-grade fused silica, or N-F2. How much two wavelengths are separated upon output will depend on the refractive of the prism material and the distance travelled through the prism.

High-precision equilateral dispersing prisms separate a beam of light spectrally, a technique often used to isolate two laser wavelengths following the same beam path.   Each ray is refracted twice as it passes through the prism, and how much two wavelengths are separated upon output will depend on the refractive of the prism material and the distance travelled through the prism. An equilateral dispersing prism possesses three equal 60° angles, and is most often used for wavelength separation.  When the incident beam is oriented such that it travels through the prism parallel to its base, “minimum deviation” is said to occur; the incident and exit angles are equal, the prism magnification is one, and reflection losses are low.  Dispersing prisms are therefore often used at the minimum deviation angle.   
• High-quality surface polish for use in high power applications
• Standard size: 25.0 mm base
• N-BK7, UV-grade fused silica, or N-F2 with user-specified antireflection coatings
• N-F2 provides greatest dispersion for visible and near-IR range
• Custom dimensions, materials, and coatings available