The CAFBS10 IR Beamsplitter is a 25.4 mm diameter, 2.00 mm thick Calcium Fluoride beamsplitter with 50/50 reflection/transmission ratio optimized for45° angle of incidence. This beamsplitter is designed for broadband infrared applications covering spectral range from 2 μm to 8 μm. The back surface of the beamsplitter has a 3 arc minutes wedge to reduce undesired interference effects caused by the back reflections from both surfaces of the optics.

• 直径

  25.4 mm

• 增透膜

  Uncoated

• 材料

  Calcium Fluoride

• 表面质量

  60-40 scratch-dig

• 入射角

  45°

• 表面平面度

  ≤2 λ at 632.8 nm over the clear aperture

• 清洁

  See How to Clean Optics

• 通光孔径

  > central 85% of diameter

• 直径公差

  +0.00/-0.13 mm

• 厚度

  2.0 mm  

• 厚度公差

  ± 0.13 mm

• 透射

  50%, independent of polarization

• 平行度

  3 arc minutes

• 波前畸变

  2-8 µm

CAFBS10红外线分光镜是直径25.4毫米,2.00毫米厚氟化钙分光镜反射50/50 /传动比优化for45°入射角。这种分光镜是专为宽带红外应用光谱覆盖范围从2μm 8μm。波束分离器的后表面有一个3弧分钟的楔形，以减少由两个光学表面的后反射引起的不必要的干涉效应。