General Optics

AR-Coated Windows

Transmit infrared light and laser beams with minimal loss and wavefront distortion using these precision, anti-reflection coated, plane parallel windows.

Windows are used frequently in optical systems, often for environmental isolation - such as to seal vacuum or high-pressure cells. The high refractive index of infrared materials makes anti-reflection coatings a necessity to reduce reflective losses.

AR-Coated ZnSe Windows Selection

Choose from our offering of standard windows or specify exactly the component you require. Coherent has extensive optical fabrication and coating capabilities.

Model

Diameter (mm)

Thickness (mm)

Surface Figure (power/irregularity) at 0.63µm

Surface Quality

Reflectivity per Surface (%)

185217

6.35

2.03

1.0 fringe/0.5 fringe

20-10

< 0.20

568604

9.53

2.03

162879

12.7

2.03

457172

19.05

2.03

735199

25.4

2.03

617035

25.4

3.05

834076

27.94

3.05

184651

38.1

3.05

883636

50.8

5.08

243559

63.5

6.35

616847

76.2

6.35

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