금(Au) 거울은 근적외선(>800nm)에서 원적외선 작동 대역, 특히 2~20μm 범위에서 매우 높은 반사율(일반적으로 >98%)을 나타내는 동시에 탁월한 화학적 불활성 및 환경 안정성을 자랑합니다. ECOPTIK은 원형, 사각형 및 맞춤형 형상의 거울을 다양한 크기로 제공하며, 표면에는 보호 금 코팅이 되어 있습니다.
Monocrystalline silicon substrate: High rigidity and good thermal stability, suitable for applications requiring high power density or lightweight design; K9/fused silica substrate: Low cost and high surface accuracy, suitable for general infrared laboratory systems.
In the infrared band (2μm - 20μm), especially at 10.6μm (CO₂ laser), reflectivity typically reaches R > 98% - 99.5%. This means minimal energy loss in the infrared optical path. In the near-infrared band (800nm - 1600nm), reflectivity is also typically above R > 96% - 98%, suitable for fiber lasers and optical communications.
Gold is resistant to oxidation, sulfidation, and corrosion. Pure gold films are relatively soft and easily scratched. A protective film (such as Y₂O₃, SiO₂, etc.) is usually added to the gold film to improve durability and cleanability.
In high-power CO₂ laser or fiber laser systems, it can withstand extremely high continuous power (kW level) without damage. It also possesses excellent heat dissipation capabilities.
| 기질 | K9/용융 실리카/실리카 유리 |
|---|---|
| 차원 | 2mm~100mm |
| 투명 개구부 | 치수의 90% 이상 |
| 표면 품질 | 40/20, 20/10 스크래치-디그 |
| 표면 불규칙성 | λ/2~λ/10 @632nm |
| 두께 | 1mm~20mm |
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