BSW510 Dia:1in 50:50 (R:T) CaF2 Plate Beamsplitter; Coating: 2-8 µm; t=5 mm

The BSW510 Dia:1in 50:50 (R:T) CaF2 Plate Beamsplitter is a high-quality optical component sourced from Thorlabs. This beamsplitter, with a diameter of 1 inch (25.4 mm) and a thickness of 5 mm, is designed for use in a variety of optical systems.

The beamsplitter is made of Calcium Fluoride (CaF2), a material with a Malus index of 1.963, which is known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. The beamsplitter's coating, specifically the 50CaF2BS20008000 coating, is designed for a wavelength of 633 nm and has a coating thickness of 2-8 µm. This coating ensures a 50:50 (R:T) split, meaning that the beamsplitter reflects 50% of the incident light and transmits the remaining 50%.

The BSW510 is shaped as a thin lens, which is beneficial for applications where a flat surface is required. The beamsplitter's physical data indicates a reflection of 0.5 and a transmission of 0.5, further emphasizing its 50:50 split capability.

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