Nd: YAG Laser
Plate Beamsplitters

Beamsplitters are optical components used to split incident light at a designated ratio into two separate beams. Additionally beamsplitters can be used in reverse to combine two different beams into a single one. Standard beamsplitters are commonly used with unpolarized light sources such as natural or polychromatic, they split the beam by the percentage of intensity, such as 50% transmission and 50% reflection, or 30% transmission and 70% reflection. Non-polarizing beamsplitters are specifically controlled not to alter the S and P polarization states of the incoming light. Polarizing beamsplitters will transmit P polarization and reflect S polarization allowing the user to add polarized light into the optical system. Dichroic beamsplitters split incoming light by wavelength and are commonly used in fluorescence applications to separate the excitation and emission paths.