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洛匈偏振器是由两个双折射晶体棱镜的光学胶合或胶水结合在一起. 第一棱镜,入射光方向将平行于光轴. 第二棱镜,光轴方向与入射光束方向垂直, 这样平常光按同样方向无偏折透射, 而非常光出射方向发生了偏折. 洛匈偏振器可以用来获得平面偏振光, 而且可以应用用紫外波段. 可以针对特定波长设计任何特定的光束分离角/偏折角.
洛匈偏振器规格:
|
材料 |
MgF2, a-BBO, Calcite, YVO4, Quartz |
|
波长范围 |
MgF2:130-4000nm; a-BBO: 190-3500nm; Quartz:200-2300nm; Calcite: 350-2300nm; YVO4: 500-4000nm |
|
消光比 |
Calcite:<5x10-5 ; a -BBO:<5x10-6 ; YVO4:<5x10-6 ; MgF2:<10-4 ; Quartz:<5x10-5 |
|
表面质量 |
20/10 scratch/dig |
|
光束偏移 |
< 3 arc minutes |
|
波前畸变 |
λ/4@632.8nm |
|
损伤阈值 |
>500MW/cm2 |
|
镀膜 |
Single Layer MgF2 |
|
外壳 |
Black Anodized Aluminium |
1. MgF2洛匈偏振器
|
Part No. |
Aperture φa (mm) |
O.D. φd(mm) |
L (mm) |
Wavelength Range |
Extinction Ratio |
Separation Angle |
|
RHM06 |
6.0 |
15.0 |
14.0 |
130-7000nm |
< 10-4 |
1°- 2 °, 1°@980nm |
|
RHM08 |
8.0 |
25.4 |
18.0 |
|||
|
RHM10 |
10.0 |
25.4 |
18.0 |
|||
|
RHM15 |
15.0 |
30.0 |
38.0 |
|||
|
RHM20 |
20.0 |
38.0 |
48.0 |
2. a-BBO洛匈偏振器
|
Part No. |
Aperture φa (mm) |
O.D. φd(mm) |
L (mm) |
Wavelength Range |
Extinction Ratio |
Separation Angle |
|
RHB06 |
6.0 |
15.0 |
15.0 |
190-3500nm |
<5x10-6 |
8.0°-14°, 8°@800nm |
|
RHB08 |
8.0 |
25.4 |
17.0 |
|||
|
RHB10 |
10.0 |
25.4 |
19.0 |
|||
|
RHB15 |
15.0 |
30.0 |
23.0 |
|||
|
RHB20 |
20.0 |
38.0 |
29.0 |
3. YVO4洛匈偏振器
|
Part No. |
Aperture φa (mm) |
O.D. φd(mm) |
L (mm) |
Wavelength Range |
Extinction Ratio |
Separation Angle |
|
RHY06 |
6.0 |
15.0 |
15.0 |
500-4000nm |
<5x10-6 |
9.8°-13.0°, 10°@1550nm |
|
RHY08 |
8.0 |
25.4 |
17.0 |
|||
|
RHY10 |
10.0 |
25.4 |
19.0 |
|||
|
RHY15 |
15.0 |
30.0 |
23.0 |
|||
|
RHY20 |
20.0 |
38.0 |
25.0 |
4. Quartz洛匈偏振器
|
Part No. |
Aperture φa (mm) |
O.D. φd(mm) |
L (mm) |
Wavelength Range |
Extinction Ratio |
Separation Angle |
|
RHQ06 |
6.0 |
15.0 |
20.0 |
200-2300nm |
<5x10-5 |
1.0°-1.5 °, |
|
RHQ08 |
8.0 |
25.4 |
24.0 |
|||
|
RHQ10 |
10.0 |
25.4 |
28.0 |
|||
|
RHQ15 |
15.0 |
30.0 |
38.0 |
|||
|
RHQ20 |
20.0 |
38.0 |
48.0 |
|
双折射晶体材料特性 |
a-BBO Crystal│YVO4 Crystal│Calcite Crystal│Quartz Crystal│MgF2 Crystal