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Clear Aperture CA (mm):
22.50 x 39.79
Thickness (mm):
2.00 ±0.20
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52 (+5 to +35°C) 0.57 (0 to +200°C) 0.48 (-100 to +200°C)
Design Wavelength DWL (nm):
632.8
Edges:
Fine Ground
Index of Refraction nd:
1.458
Major Axis (mm):
44.21
Minor Axis (mm):
25.00 +0.00/-0.25
Parallelism (arcsec):
≤10
Substrate:
Many glass manufacturers offer the same material characteristics under different trade names. Learn More
TECHSPEC® Brewster Windows are designed to present a circular profile when oriented at Brewster’s angle (55.57°). TECHSPEC® Brewster Windows feature laser grade surface quality and parallelism, in addition to limiting transmitted wavefront distortion to λ/10. When used at 55.57°, these windows minimize the loss of P-polarized light, ideal for use within laser cavities and for producing linearly polarized light.
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