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Ge衰减全反射(ATR)棱镛/span>
Ge是用于制造光谱学衰减全反射(ATR)棱镜的高折射率材料 其折射率使得锗在不需要涂层的情况下产生有效的自然皃/span>50%分束器 锗也广泛作用于生产光学滤波器的衬底 锗覆盖整?/span>8-14um热能带,并用于热成像的透镜系统中 锗可以被AR涂覆金刚石,产生非常坚韧的光学窗口、/span>
比利时,美国,中国和俄罗斯的少数制造商生产Ge使用Czochralski技术生长 锗的折射率随温度迅速变化,并且随着带隙用热电子流,材料在所有波长稍高于350K时变得不透明、/span>
产品参数9/span>
透射范围9/span>1.8?23m'/span>1(/span>
折射率: 4.0026 at 11m'/span>1)(2(/span>
反射损耗: 53 at 11m(两个表面)
吸收系数9/span><0.027cm-1 @10.6m
吸收峰: n / a
dn / dT 39610-6 /℃(2(/span>
dn /d= 0 几乎恒定
密度9/span> 5.33g / cc
熔点9/span> 936℃(3(/span>
导热系数9/span> 58.61 W m-1 K-1 at 293K'/span>6(/span>
热膨胀9/span> 6.110-6 / at 298K'/span>3)(4)(6(/span>
硬度9/span> Knoop 780
比热容量9/span> 310JKg-1K-1'/span>3(/span>
介电常数9/span> 16.6 at 300K+/span>9.37GHz
杨氏模量'/span>E): 102.7GPa'/span>4)(5(/span>
剪切模量'/span>G): 67GPa'/span>4)(5(/span>
体积模量'/span>K): 77.2GPa'/span>4(/span>
弹性系数: C11 = 129; C12 = 48.3; C44 = 67.1'/span>5(/span>
表观弹性极限: 89.6 MPa'/span>13000 psi(/span>
泊松比: 0.28'/span>4)(5(/span>
溶解性:不溶于水
分子量: 72.59
类别/结构 立方钻石+/span>Fd3m
折射率:
No = Ordinary Ray
m | No | m | No | m | No |
2.058 | 4.102 | 2.153 | 4.0919 | 2.313 | 4.0786 |
2.437 | 4.0708 | 2.577 | 4.0609 | 2.714 | 4.0562 |
2.998 | 4.0452 | 3.303 | 4.0369 | 4.258 | 4.0216 |
4.866 | 4.017 | 6.238 | 4.0094 | 8.660 | 4.0043 |
9.720 | 4.0034 | 11.04 | 4.0026 | 12.00 | 4.0023 |
13.02 | 4.0021 |
订购信息9/span>
订购型号 | 规格 | 材料等级 |
GEPRISM52-20-2-45 | 52 x 20 x 2mm 45 ATR | IR polished |
GEPRISM60-15-3-45 | 60 x 15 x 3mm 45 ATR | IR polished |
GEPRISM60-15-3-60 | 60 x 15 x 3mm 60 ATR | IR polished |
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