The 40Z40BD.2 Broadband Dielectric Mirror is an extremely versatile mirror for laboratory applications and highly efficient over a broad wavelength range. This 4 inch (101.6 mm) diameter mirror is made from a 17.7 mm thick Zerodur substrate. Zerodur is a glass-ceramic material where thermal expansion is nominally zero. This extra stability can be critical for applications requiring diffraction limited performance. The BD.2 coating offers high reflectance for near infrared diode laser applications. The BD-2 coating is extremely durable and will withstand repeated cleaning. This mirror has a λ/20 surface flatness and a 10-5 surface quality.

• 波长区域

  NIR

• 波长范围

  700-950 nm

• 镜片形状

  Round

• 镜片尺寸

  Ø101.6 mm

• 材料

  Zerodur®

• 镀膜类型

  Broadband Dielectric

• 镀膜代码

  BD.2

• 表面质量

  10-5 scratch-dig

• 表面平面度

  λ/20 at 632.8 nm

• 基板编号

  40Z40

• 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)>97% @ 700-950 nm,R(avg)>80% at 632.8 nm

• 损伤阈值

  1000 W/cm2 CW, 1 J/cm2 with 10 nsec pulses within the wavelength range, typical

• 厚度

  17.7 mm  

• 厚度公差

  ±0.25 mm

• 直径

  101.6 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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40 z40bd。宽带介质反射镜是一种适用于实验室的多功能反射镜，在宽波长范围内具有很高的效率。这面直径4英寸(101.6毫米)的镜子是由17.7毫米厚的零调衬底制成的。零是一种热膨胀名义上为零的微晶玻璃材料。对于需要衍射限制性能的应用程序，这种额外的稳定性是至关重要的。该涂层为近红外二极管激光器的应用提供了高反射率。BD-2涂层非常耐用，可以经受多次清洗。这个镜子λ/ 20表面平面度和纯表面质量。