Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
Achromatic Waveplate Achromatic Waveplates(Retarders), AWP is composed of one piece of Crystal Quartz and one piece of Magnesium Fluoride, MgF2.
Barium fluoride (BaF2) shows good optical transmission over UV-IR windows in 0.15μm~12.5μm.
MgF2 windows are used in the UV, visible and IR ranges, with approximately 94% transmission from 200 - 1000 nm, and approximately 95% transmission from 1-6µm
CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance
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T/T Payment, Western UnionIR Windows Barium fluoride (BaF2) Windows
Barium fluoride (BaF2) shows good optical transmission over wide spectrum range, which can be used as UV-IR windows in 0.15μm~12.5μm. It also presents excellent scintillation properties, which is widely used in high energy physics, nuclear physics and nuclear medical instruments.
WTS make customized coated and uncoated BaF2 windows.
Note:When handling BaF2, please always wear gloves as it is a hazardous material.
BaF2 Windows SPECIFICATION:
Material:
BaF2
Dimension Tolerance:
+0.0, -0.1mm
Thickness Tolerance:
± 0.1mm
Surface quality:
80/50
Clear Aperture:
>85%
Flatness:
λ per 25mm
Parallelism:
3'
Bevel:
<0.25mm X 45°
Coating:
Upon requirement
BaF2 Main Properties and Performance
Transmission range (μm)
0.15~12.5
Transmittance
＞90% （0.35~9μm, 3mm）
Refractivity(2.58μm)
1.4626
Reflection Loss at 2.58μm
6.8%(both faces)
Radiation length(cm)
2.06
Emission peak (nm)
310(slow); 220(fast)
Decay constant(ns)
620(slow); 0.6(fast)
Light output[NaI(TI)=100%]
20%(slow); 4%(fast)
Knoop hardness (kg/mm2)
82 with 500g indenter
Solubility at 23℃(g/100gH2O)
0.17
Cleavage plane
-111
Density (g/cm3)
4.89
Melting Point (℃)
1280
|
Typical Sizes: |
|
| Round Shape | Φ5.0; Φ10.0 ; Φ12.7; Φ15.0; Φ20.0; |
| Diameter(mm): | Φ25.4; Φ30.0; Φ38.1; Φ50.8; Φ76.2 |
| Square Shape: | 5.0x5.0 ; 10.0x10.0 ; 15.0x15.0 ; |
| WxH(mm) | 20.0x20.0; 25.0x25.0; 50.0x50.0 |
| Thickness(mm): | 0.5; 1.0; 1.5; 2.0; 3.0; |
| 4.0; 5.0; 6.0; 8.0; 10.0 |
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