Zinc Selenide (ZnSe) Windows
• Low absorption in the red end of the visible spectrum • Not hygroscopic • Quite stable in the laboratory environment Zinc selenide (ZnSe) is the most popular material for infrared applications. Due to a very wide… Read more →
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| SKU | Diameter · Thickness · Coating · Group | |
|---|---|---|
| 560-6120 | ø 12.7 mm·2 mm·uncoated·Uncoated |
20 in stock
Ships in: 2–5 calendar days
$64
|
| 560-6121 | ø 12.7 mm·3 mm·uncoated·Uncoated |
13 in stock
Ships in: 2–5 calendar days
$66
|
| 560-6122 | ø 12.7 mm·2 mm·AR/[email protected] µm, AOI=0°·Coated |
5 in stock
Ships in: 2–5 calendar days
$98
|
| 560-6250 | ø 25.4 mm·2 mm·uncoated·Uncoated |
41 in stock
Ships in: 2–5 calendar days
$80
|
| 560-6251 | ø 25.4 mm·3 mm·uncoated·Uncoated |
21 in stock
Ships in: 2–5 calendar days
$84
|
| 560-6253 | ø 25.4 mm·3 mm·AR/[email protected] µm, AOI=0°·Coated |
4 in stock
Ships in: 2–5 calendar days
$150
|
| 560-6381 | ø 38.1 mm·3 mm·uncoated·Uncoated |
8 in stock
Ships in: 2–5 calendar days
$156
|
| 560-6383 | ø 38.1 mm·3 mm·AR/[email protected] µm, AOI=0°·Coated |
3 in stock
Ships in: 2–5 calendar days
$236
|
| 560-6501 | ø 50.8 mm·3 mm·uncoated·Uncoated |
Out of stock
Ships in: 62–65 calendar days
$311
|
| 560-6503 | ø 50.8 mm·5 mm·uncoated·Uncoated |
7 in stock
Ships in: 2–5 calendar days
$391
|
| 560-6505 | ø 50.8 mm·5 mm·AR/[email protected] µm, AOI=0°·Coated |
Out of stock
Ships in: 62–65 calendar days
$471
|
| 560-6766 | ø 76.2 mm·6,4 mm·AR/[email protected] µm, AOI=0°·Coated |
Out of stock
Ships in: 62–65 calendar days
$1,143
|
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Specifications
| Crystal type | cubic |
| Density, g / cm³ | 5.27 |
| Melting point, °C | 1525 |
| Refractive index @ 8-13 µm | n = 2.417-2.385 |
| Refractive index @ 10.6 µm | n = 2.403 |
| Transmission band, µm | 0.6÷22 |
| Bulk absorption coefficient cm⁻¹@ 10.6 µm | 0.6-1.0×10⁻³ |
| Coefficient of linear thermal expansion, °C-¹ | 8.56×10⁻⁶ |
Specifications
| Material | ZnSe |
| Surface quality | 40-20 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of the diameter |
| Diameter tolerance | +0.0 -0.13 mm |
| Thickness tolerance | ±0.1 mm |
| Parallelism | 3 arcmin |
| Flatness | λ / 40 per inch @ 10.6 µm over clear aperture |
| Coating | both surfaces AR coated @ 10.6 µm, R ≤ 0.5% per surface |
Classification
| Wavelength | UV|IR |
Description
- Low absorption in the red end of the visible spectrum
- Not hygroscopic
- Quite stable in the laboratory environment
Zinc selenide (ZnSe) is the most popular material for infrared applications. Due to a very wide transmission range covering 0.6-22 µm chemical vapor deposition grown ZnSe as a high optical quality material is used to manufacture optical components (windows, mirrors, lenses) for high power IR lasers.
