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25.4mm Dia., 3mm Thick, Uncoated, ISP Optics AMTIR-1 Window | AM-W-25-3

AMTIR-1 Windows

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Stock #16-797 3-5 days
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Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
21.59
Diameter (mm):
25.40 +0.00/-0.13
Thickness (mm):
3.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
12.6
Density (g/cm3):
4.43
Edges:
Fine Ground
Index of Refraction nd:
2.519 @ 3μm
2.503 @ 8μm
2.490 @ 12μm
Knoop Hardness (kg/mm2):
170
Parallelism (arcmin):
<3
Poisson's Ratio:
0.215
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
AMTIR-1 (Ge33As12Se55)
Surface Flatness (P-V):
λ/10 @ 10.6μm
Surface Quality:
40-20
Type:
Protective Window
Wavelength Range (nm):
750 - 14000
Young's Modulus (GPa):
21.2
Model Number:
AM-W-25-3

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

  • Transmission from 750nm - 14μm
  • Excellent Chemical Resistance to Acids
  • Low Index of Refraction

ISP Optics AMTIR-1 (Amorphous Material Transmitting Infrared Radiation) Windows are constructed from a chalcogenide material, Ge33As12Se55, and transmit infrared light from 750nm to 14μm. AMTIR-1 is water insoluble and has excellent chemical resistance to acids, enabling these windows to be used in harsh environments as protective windows. Compared to germanium windows, these windows have a lower index of refraction and do not experience thermal runaway, allowing for their use uncoated and in elevated temperatures up to 300°C. ISP Optics AMTIR-1 Windows are ideal for use in infrared imaging systems, non-contact temperature measurement systems, forward-looking infrared (FLIR) cameras, and low power infrared laser systems.