The 20D20BD.1 Broadband Dielectric Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 2 inch (50.8 mm) diameter mirror is made from a 12.7 mm thick Borofloat® 33 substrate. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The BD-1 coating is extremely durable and will withstand repeated cleaning. This mirror has a λ/10 surface flatness and a 15-5 surface quality.

• 波长区域

  VIS

• 波长范围

  488-694 nm

• 镜片形状

  Round

• 镜片尺寸

  Ø50.8 mm

• 材料

  Borofloat® 33

• 镀膜类型

  Broadband Dielectric

• 镀膜代码

  BD.1

• 表面质量

  15-5 scratch-dig

• 表面平面度

  λ/10 at 632.8 nm

• 基板编号

  20D20

• 入射角

  0-45°

• 通光孔径

  ≥central 80% of diameter

• S2 表面

  Ground

• 反射率

  Rs (avg)>99%, Rp (ave)>98% @ 488-694 nm

• 损伤阈值

  500 W/cm2 CW, 1 J/cm2 with 10 nsec pulses within the wavelength range, typical

• 厚度

  12.7 mm  

• 厚度公差

  ±0.25 mm

• 直径

  50.8 mm  

• 直径公差

  +0/-0.13 mm

• 倒角

  0.38–1.14 mm face width

• 倒角公差

  45° ±15°

• 清洁

  See How to Clean Optics

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