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真零级波片由晶体石英波片与高精度BK7玻璃基片胶合组成. 由于波片厚度很薄,容易损坏, BK7基片是起加强波片的作用. 双面减反射(AR)镀膜有助于减少表面的反射损耗和回波损耗.
特性:
- 采用环氧树脂胶合
- 1/4λ 和 1/2λ 延迟角
- 大接收角
- 宽工作波片带宽
- 更好的温度带宽
真零级波片规格:
|
材料 |
Crystal Quartz, laser quality |
|
波片结构 |
Cemented |
|
延迟角 |
λ/4 and λ/2 |
|
延迟角精度 |
< λ/300 |
|
尺寸公差 |
+0.0/-0.2mm |
|
有效口径 |
> 90% central |
|
波前畸变 |
λ/8 @632.8nm |
|
平行度 |
< 1 arc second |
|
表面质量 |
20-10 scratch-dig |
|
增透膜层 |
R < 0.25% |
|
损伤阈值 |
> 500mJ/cm2, 20ns, 20Hz @1064nm |
订购信息:
Description: True Zero Order WavePlate
Part Number: WPZT–Retardance–Wavelength–Dimension–Coating–Mount
Retardance: λ/2 or λ/4
Wavelength: 405nm,488nm,532nm,546nm,632.8nm,670nm,780nm,808nm,850nm,980nm,
1030nm,1047nm,1053nm,1064nm,1310nm,1480nm,1550nm,2020nm
Dimension: Φ10.0mm, Φ12.7mm, Φ15.0mm, Φ20.0mm, Φ25.4mm, Φ30.0mm or Others
Coating: AR coating or Uncoated
Mount: Φ25.4mm, Φ30.0mm or Unmounted