68-368 25 mm Dia. 20:80 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm
- Type
- Beam Splitter
- Subtype
- Thin BS
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.506634801642448
- λ
- 1064 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
68-368 25 mm Dia. 20:80 (R:T) N-BK7 Plate Beamsplitter; t=3mm NIR 700-1100nm
The 68-368 is a 25 mm diameter Beam Splitter from Edmund Optics, designed for use in the Near-Infrared (NIR) spectrum of 700-1100nm. This Thin Beamsplitter, with a thickness of 3mm, is made of N-BK7 Schott glass, a popular choice for its high homogeneity and excellent transparency in the visible and near-infrared regions.
The beamsplitter features a 20:80 (R:T) reflectance to transmission ratio, meaning that it reflects 20% of the incident light and transmits 80%. This ratio is achieved through the application of a specialized coating, EDM 68-364, on the front surface of the beamsplitter. This coating is specifically designed for use in the NIR spectrum, ensuring optimal performance in this wavelength range.
The beamsplitter's geometry is that of a Circular Thin Lens, making it suitable for a wide range of optical applications. The physical data provided indicates a reflection of 0.2 and a transmission of 0.8, aligning with the specified 20:80 (R:T) ratio.
For more information, including pricing and availability, please refer to the vendor's website at https://www.edmundoptics.com/p/25mm-dia-20r80t-nir-plate-beamsplitter/23010/.
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