返回 蓝宝石（Al2O3）棱镜 返回 蓝宝石（Al2O3）棱镜 
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详细参数：
传输范围： 0.17~5.5μm
折射率： No 1.75449; Ne 1.74663（1.06μm）（1）
反射损耗： 14％ at 1.06μm
吸收系数： 0.3×10 -3 cm -1 at 2.4μm （2）
吸收峰： 13.5μm
dn / dT： 13.4×10 -6（0.546μm）（3）
dn /dμ= 0： 1.5μm
密度： 3.97g/cm3
熔点： 2040℃
热导率： 27.21W m-1K-1 at 300K
热膨胀： 5.6（para）& 5.0（perp）×10-6 / K *
硬度： Knoop 2000 with 2000g indenter
比热容量： 763JKg-1K-1（293K）（4）
介电常数： 11.5（para）9.4（perp）at 1MHz
杨氏模量（E）： 335GPa
剪切模量（G）： 148.1GPa
体积模量（K）： 240GPa
弹性系数： C11 = 496 C12 = 164 C13 = 115 C33 = 498 C44 = 148
表观弹性极限： 300 MPa（45,000 psi）
泊松比： 0.25
溶解度： 98×10-6g / 100g water
分子量： 101.96
类/结构： Trigonal（hex），R3c
折射率：
No = Ordinary Ray Ne = Extraordinary Ray
μm | No | Ne | μm | No | Ne | μm | No | Ne |
0.193 | 1.9288 | 1.9174 | 0.213 | 1.8890 | 1.8784 | 0.222 | 1.8754 | 1.8650 |
0.226 | 1.8702 | 1.8599 | 0.244 | 1.8506 | 1.8407 | 0.248 | 1.8470 | 1.8372 |
0.257 | 1.8393 | 1.8297 | 0.266 | 1.8330 | 1.8236 | 0.280 | 1.8244 | 1.8151 |
0.308 | 1.8110 | 1.8020 | 0.325 | 1.8047 | 1.7958 | 0.337 | 1.8001 | 1.7921 |
0.351 | 1.7969 | 1.7882 | 0.355 | 1.7960 | 1.7883 | 0.442 | 1.7804 | 1.7721 |
0.458 | 1.7784 | 1.7702 | 0.488 | 1.7753 | 1.7671 | 0.515 | 1.7730 | 1.7649 |
0.532 | 1.7717 | 1.7636 | 0.590 | 1.7680 | 1.7600 | 0.633 | 1.7659 | 1.7579 |
0.670 | 1.7643 | 1.7563 | 0.694 | 1.7634 | 1.7554 | 0.755 | 1.7614 | 1.7535 |
0.780 | 1.7607 | 1.7527 | 0.800 | 1.7601 | 1.7522 | 0.820 | 1.7596 | 1.7517 |
0.980 | 1.7561 | 1.7482 | 1.064 | 1.7545 | 1.7466 | 1.320 | 1.7501 | 1.7423 |
1.550 | 1.7462 | 1.7384 | 2.010 | 1.7375 | 1.7297 | 2.249 | 1.7323 | 1.7243 |
2.703 | 1.719 | 1.711 | 2.941 | 1.712 | 1.711 | 3.333 | 1.701 | 1.693 |
3.704 | 1.687 | 1.679 | 4.000 | 1.674 | 1.666 | 4.348 | 1.658 | 1.65 |
4.762 | 1.636 | 1.628 | 5.000 | 1.623 | 1.615 | 5.263 | 1.607 | 1.599 |
订购信息：
产品型号: SAPPRISM10-60
IR Polished Sapphire (Al2O3) 60° prism
10 x 10 x 10mm 60° equiliateral dispersing prism.
A=B=C=H=10mm
Optic axis random direction.
产品型号: SAPPRISM10-60Z
IR Polished Sapphire (Al2O3) 60° prism
10 x 10 x 10mm 60° equiliateral dispersing prism.
A=B=C=H=10mm
Optic axis perpendicular to triangular faces
关于晶体切割：
Sapphire is slightly birefringent and so for critical optical or mechanical applications, the windows should be specified as 'zero degree', or 'c-cut', meaning that the optical axis of the material should be perpendicular to the plane of the window. If unspecified, the component will be of 'random' cut, but its worth noting that this is nearly always 60° to the optic axis as this is the 'softest' direction for the saw. Note that all sapphire is always single crystal, sub-grains are always avoided in the cut.
C-plane (0,0,0,1) = Z-cut
A-plane (1,1,-2,0) = Y-cut
M-Plane (1,0,-1,0) = X-cut R-Plane (1,0,-1,0)
Manufacturers seem unable to agree on the thermal expansion coefficient of sapphire, figures from 5.6 to 8.4 x 10-6 K are given. While there may be some variation due to the method of growth, and certainly due to the axis of cut, this variation is inexplicable.