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低级波片由单片的石英晶体精密抛光到特定的厚度实现在工作波长达到预期的相位延迟. 这种波片比零级波片对温度和波长的变化更敏感. 因此它们一般只在特定波长和温度下使用.
特性:
- 高损伤阈值
- 更好的波前和平行度
- 适合于单波长的应用
- 低成本
低级波片规格:
|
材料 |
Crystal Quartz, laser quality |
|
波片结构 |
Single plate |
|
延迟角 |
λ/4 and λ/2 |
|
延迟角精度 |
< λ/200 |
|
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 |
> 10 J/cm2, 20 nsec, 20 Hz; 1 MW/cm2 cw @ 1064 nm |
订购信息:
Description: Multiple Order WavePlate
Part Number: WPM–Retardance–Wavelength–Dimension–Coating–Mount
Retardance: λ/2 or λ/4
Wavelength: 213nm,248nm,257nm,266nm,308nm,355nm,405nm,488nm,515nm,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