The 20BW40-30AR.18 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 2 inch (50.8 mm) diameter N-BK7 window is 10 mm thick. It has Newport's AR.18 broadband IR antireflection coating for a 1000 to 1550 nm wavelength range. For demanding applications, such as intracavity laser applications, holography, and multiphoton imaging, this window has a λ/20 surface flatness and 10-5 scratch-dig significantly reducing unwanted scatter.

• 直径

  50.8 mm

• 材料

  Grade A N-BK7

• 增透膜

  1000-1550 nm

• 表面平面度

  λ/20 @ 632.8 nm

• 表面质量

  10-5 scratch-dig

• 厚度

  10.0 mm  

• 厚度公差

  ±0.25 mm

• 透射光束偏移

  90°±30 arc sec

• 波前畸变

  λ/10 @ 632.8 nm

• 倒角

  0.38–1.14 mm face width

• 倒角公差

  45° ±15°

• 清洁

  See How to Clean Optics

• 通光孔径

  Central 85% of diameter

• 直径公差

  +0/-0.15 mm

• 镀膜代码

  AR.18

• 楔形

  ≤30 arc sec

• 损伤阈值

  7.5 J/cm2, 10 ns pulses, 20 Hz at 1064 nm

20 bw40-30ar。18个激光级平行窗口平行于小于30弧秒的最小传输波束偏差。这个2英寸(50.8毫米)直径的N-BK7窗户有10毫米厚。它有Newport公司的AR.18宽频红外抗反射涂层，波长在1000到1550 nm之间。对于要求应用程序,如腔内激光应用中,全息术,和多光子成像,这窗口有一个λ/ 20表面平面度和纯scratch-dig大大减少不必要的散射。

The 20BW40-30AR.18 Laser-Grade Parallel Window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 2 inch (50.8 mm) diameter N-BK7 window is 10 mm thick. It has Newport's AR.18 broadband IR antireflection coating for a 1000 to 1550 nm wavelength range. For demanding applications, such as intracavity laser applications, holography, and multiphoton imaging, this window has a λ/20 surface flatness and 10-5 scratch-dig significantly reducing unwanted scatter.