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  • 详细介绍:


    蓝宝石(Al2O3)棱镜

    蓝宝石因其极度的韧性和强度可以很好的应用为UVVISNIR光谱波段的光学窗片材料。

    蓝宝石具有多种生长方式。 VerneuilCzochralski方法通常用于标准级蓝宝石材料。更高质量的蓝宝石,应用于电子基板。它是由Kyropulos生长制造,可以得到非常高的纯度,产品具有优良的紫外透射特性。在IR中的使用范围被限制在约5μm,并且在任何光学级别中遇到很少的困难。 它在紫外线范围内,必须注意观察,因为从140nm240nm的透射对杂质和间隙空位非常敏感。大片蓝宝石可以通过色带生长制成。 蓝宝石具有轻微的双折射性,通常的IR窗口通常以随机的方式从晶体切割,也有对于双折射的特定应用,选择取向。 通常这是光轴与表面平面成90度,称为“零度”材料。 合成光学蓝宝石没有着色。

    *请注意,所有制造商似乎对热膨胀的实际数字不统一!

    详细参数:

    传输范围: 0.17~5.5μm

    折射率: No 1.75449; Ne 1.746631.06μm)(1

    反射损耗: 14at 1.06μm

    吸收系数: 0.3×10 -3 cm -1 at 2.4μm 2

    吸收峰: 13.5μm

    dn / dT13.4×10 -60.546μm)(3

    dn /dμ= 01.5μm

    密度: 3.97g/cm3

    熔点: 2040

    热导率: 27.21W m-1K-1 at 300K

    热膨胀: 5.6para& 5.0perp)×10-6 / K *

    硬度: Knoop 2000 with 2000g indenter

    比热容量: 763JKg-1K-1293K)(4

    介电常数: 11.5para9.4perpat 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 MPa45,000 psi

    泊松比: 0.25

    溶解度: 98×10-6g / 100g water

    分子量: 101.96

    /结构: Trigonalhex),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 shouldbe specified as 'zero degree', or 'c-cut', meaning that the optical axis of the material should be perpendicular to the plane of thewindow. If unspecified, the component will be of 'random' cut, but its worth noting that this is nearly always 60°to the opticaxis as this is the 'softest' direction for the saw. Note that all sapphire is always single crystal, sub-grains are always avoided inthe 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 themethod of growth, and certainly due to the axis of cut, this variation is inexplicable.