The TECHSPEC® Non-Polarizing Cube Beamsplitters have a 50/50 reflection/transmission ratio, and are constructed from high tolerance N-BK7 right angle prisms. Three transmitting faces have a Broadband Anti-Reflection (BBAR) coating to maximize transmission for the specified wavelength ranges. The transmitting surfaces of these beamsplitters have λ/8 surface flatness and 40‑20 surface quality. They are spectrally flat, reducing undesirable effects that are caused by changes in the angle of incidence or changing beam divergence.
The TECHSPEC® Standard In-Line Cube Beamsplitters are an exceptionally cost-effective alternative, manufactured from standard-grade N-BK7 right angle prisms. The transmitting faces are coated with a MgF2 Anti-Reflection (AR) coating, and the hypotenuse is coated with a proprietary multilayer dielectric beamsplitter coating which provides the 30/70 reflection/transmission ratio. The transmitting surfaces of these beamsplitters have λ/4 surface flatness and 60-40 surface quality.
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