LBTEK equilateral dispersive prisms are manufactured from F2 material and are available in 10 mm and 25 mm side lengths. They have varying refractive powers for different wavelengths, with a higher refractive index for short wavelengths and a lower refractive index for long wavelengths. Equilateral dispersive prisms are typically used at minimum deflection angles. At this angle, light of the working wavelength is parallel to the base of the prism. Furthermore, since this angle is close to Brewster's angle, loss of P-polarized light is minimized. Equilateral dispersive prisms can disperse light of varying wavelengths, making them suitable for applications such as spectral analysis.