产品描述
|
透光范围 |
500~4000nm |
350~2300nm |
190~3500nm |
|
晶体结构 |
Trigonal, Space Group R3c |
Trigonal, Space Group R3c |
Trigonal, Space Group R3c |
|
晶系 |
Positive Uniaxial |
Positive Uniaxial |
Negative Uniaxial |
|
含晶细胞 |
a=b=7.12Å , c=6.29Å |
a=b=4.621Å , c=3.053Å |
a=b=12.532 A, c=12.717 Å |
|
密度 |
4.22g/cm3 |
2.7g/cm3 |
3.85g/cm3 |
|
潮解性 |
Low |
Low |
Low |
|
莫氏硬度 |
5 |
3 |
4.5 |
|
热膨胀系数 |
aa =4.43x10-6/k |
aa =24.39x10-6/k |
aa =4x10-6/k |
|
光学均匀性 |
10-6/cm |
10-6/cm |
10-6/cm |
|
吸收系数 |
0.05%/cm-1 @ 1064 nm |
0.07 @ 200nm 0.02 @ 500nm |
0.05%/cm-1 @ 1064 nm |
|
在 45°时屈光指数，双折射，离散角（ρ） |
ne =2.2154, no =1.9929 |
ne =1.4852 no =1.6557 |
ne =1.67056, no =1.54831 |
| 直径 | Max. 30~40mm | Max. 150mm | Max. 40~50mm |
| 长度 | Max. 25~35mm | Max. 100mm | Max. 25~35mm |
| 光洁度 | Better than 20/10 Scratch/Dig Per MIL-0-13830A | ||
| 光束偏移 | <10 arc seconds | ||
| 光轴方向 | +/-0.2 ° | ||
| 面形 | < λ/6 @633nm | ||
| 透过波前畸变 | < λ /4 @633nm | ||
| 镀膜 | Upon Specification | ||
