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[China]
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Address: Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact name:Xu
Hangzhou Freqcontrol Electronic Technology Ltd. |
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High Durability Broad Transmission Sapphire Wafer for IR Optical Applications
Sapphire is used for its durability and erosion/corrosion resistance, often in combination with the ability to withstand high heat while having a very broad transmission range. Applications include:
· Windows - FLIR (Forward Looking Infra Red) windows for sensors
and other optics. Optical clarity over a broad spectral range
combines with durability in this application.
· Windows - for erosion resistance in salt and blowing sand
environments, sapphire is used in conventional windows and dome
shapes in replacement of softer, more fragile IR transmitting
materials.
· Countermeasures lamps - sapphire flash lamps are used in IRCM's
(Infra red countermeasures). The high temperature performance of
sapphire is combined with broad spectral range in this application.
OPTICAL PROPERTIES
Transmission | 0.17 to 5.5 um |
Refractive Index | 1.75449 (o) 1.74663 (e) at 1.06 um |
Reflection Loss | at 1.06 microns (2 surfaces) for o-ray - 11.7%; for e-ray - 14.2% |
Absorption Index | 0.3 x 10-3 cm-1 at 2.4 um |
dN/dT | 13.7 x 10-6 at 5.4 um |
dn/dm = 0 | 1.5 um |
Orientation | R-plane, C-plane, A-plane, M-plane or a specified orientation |
Orientation Tolerance | ± 0.3° |
Diameter | 2 inches, 3 inches, 4 inches, 6 inches, 8 inches or others |
Diameter Tolerance | 0.1mm for 2 inches, 0.2mm for 3 inches, 0.3mm for 4 inches, 0.5mm for 6 inches |
Thickness | 0.25mm, 0.33mm, 0.43mm, 0.65mm, 1mm or others; |
Thickness Tolerance | 25μm |
Primary Flat Length | 16.0±1.0mm for 2 inches, 22.0±1.0mm for 3 inches, 30.0±1.5mm for 4 inches, 47.5/50.0±2.0mm for 6 inches |
Primary Flat Orientation | A-plane (1 1-2 0 ) ± 0.2°; C-plane (0 0-0 1 ) ± 0.2°, Projected C-Axis 45 +/- 2° |
TTV | ≤10µm for 2 inches, ≤15µm for 3 inches, ≤20µm for 4 inches, ≤25µm for 6 inches |
BOW | ≤10µm for 2 inches, ≤15µm for 3 inches, ≤20µm for 4 inches, ≤25µm for 6 inches |
Front Surface | Epi-Polished (Ra< 0.3nm for C-plane, 0.5nm for other orientations) |
Back Surface | Fine ground (Ra=0.6μm~1.4μm) or Epi-polished |
Packaging | Packaged in a class 100 clean room environment |
Acceptance Check
1. The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
2. After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
3. Please open the vacuum package in a clean room when the products are to be applied.
4. If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
