광학
게르마늄 (Ge)
Use Germanium's unique combination of high refractive index and excellent hardness to build durable, low-power imaging and laser systems with a minimum component count.
Germanium (Ge) is ideal for applications where ruggedness and durability are important, and Ge optics can withstand optical powers in the range of 50-100 watts. Its high refractive index enables its use as a beamsplitter without additional coating.
Germanium (Ge) Characteristics
Coherent supplies Ge substrates of up to 150 mm diameter, and carefully monitors 10.6 µm absorptivity to ensure that thermal runaway and fracture do not occur.
Ge Material Properties |
|
Physical Properties |
|
Young’s Modulus |
100 GPa (12.04 x 106 psi) |
Rupture Modulus |
93 MPa (20,000 psi) |
Knoop Hardness |
692 kkg/mm² |
Density |
5.32 g/cm³ |
Poisson’s Ratio |
0.27 |
Thermal Properties |
|
Thermal Conductivity @ 20° C |
0.59 W/cm/°C |
Specific Heat |
0.31 J/g/°C |
Linear Expansion Coefficient @ 20° C |
5.7 x 10-6/°C |
Optical Properties |
|
Bulk Absorption @ 10.6 μm |
<0.03 cm-1 |
Temperature Change of Refractive Index @ 10.6µm |
408 x 10-6/°C |
관련 제품
광학 제조 역량
Coherent 소재 성장, 가공, 코팅, 조립에 이르는 수직 통합 역량과 철저한 품질 보증(QA) 프로세스에 대해 알아보십시오. 이러한 역량이 어떻게 당사 광학 부품의 성능과 신뢰성을 보장하고, 공급망의 위험과 불확실성을 최소화하는지 확인해 보십시오.
