Compare Model Drawings, CAD & Specs Diameter Material Antireflection Coating Surface Flatness Surface Quality Availability Price
$302
In Stock
25.4 mm CVD Laser Grade ZnSe Uncoated λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
$319
In Stock
25.4 mm CVD Laser Grade ZnSe Uncoated λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
$302
7 Weeks
12.5 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
7 Weeks
$434
In Stock
20.0 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
$464
In Stock
25.0 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
$807
In Stock
40.0 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
zinc selenide optical window model ZNPX15 made with znse
$888
In Stock
50.0 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock
zinc selenide optical window model ZNPX15 made with znse
$2,221
In Stock
74.9 mm CVD Laser Grade ZnSe 3-12 µm λ/20 @ 10.6 µm 40-20 scratch-dig
In Stock

Features

Ideal for Thermal Imaging

Zinc Selenide has low IR absorption, and is transparent across a very wide 0.6-16 µm spectral range. This is advantageous for thermal imaging, where temperatures of remote objects are ascertained via their blackbody radiation spectrum. Long wavelength transparency is crucial for imaging room temperature objects, which radiate at peak wavelength of approximately 10 µm with very low intensity.

3 to12 µm Broadband Coating

ZnSe has a high index of refraction which requires an anti-reflection coating to achieve high transmission. Our broadband AR.20 coating is optimized for 3 µm to 12 µm.

Withstands Thermally Demanding Environments

Zinc Selenide windows are ideally suited for thermally demanding environments. The windows are both low in absorption and high in thermal shock making them usable even in high power CO2 laser applications. These windows may also be used in applications such as IR imaging in scientific, military, or search and rescue applications.

Handle With Caution

Zinc Selenide material is formed with extremely high purity by molecular beam epitaxy. It is a soft material, making it resilient and tolerant of thermal shock. It is also a toxic material. Great care must be taken in handling and cleaning the material. Wear gloves at all times to avoid risk of contamination. Hold only the edge to prevent scratches. Wash hands after use.

Toxic by ingestion and inhalation of dust, with a cumulative effect. Affects nervous system. Particular care must be exercised when machining and creating dust or particles. Inhalation of dust may irritate respiratory system. Acute selenium poisoning produces central nervous system effects, which include nervousness, convulsions, and drowsiness. Other signs of intoxication can include skin eruptions, lassitude, gastrointestinal distress, teeth that are discolored or decayed, odorous ("garlic") breath. Chronic exposure by inhalation can produce symptoms that include pallor, coating of the tongue, anemia, irritation of the mucosa, lumbar pain, liver and spleen damage, as well as any of the other previously mentioned symptoms. Chronic contact with selenium compounds may cause garlic odor of breath and sweat, dermatitis, and moderate emotional instability.