Nd: YAG laser can have second and third harmonics. These three harmonics are useful in scientific community. When an optical system uses these harmonics, they need to combineseparate at the detector plane. A dichroic beamsplitter coating can be used...
Dichroic coatings will transmit some part of the spectrum while reflecting the other part. In a cube beam splitter it is hard to achieve the non-polarization condition especially when the angle of incidence is steeper. This beam splitter coating will transmit the visible...