Right-Angle Prism, Precision, N-BK7, 25.4 mm, λ/4, 1000-1550 nm

The 10BR08AR.18 Precision Right-Angle Prism is precision polished to tight tolerances for more demanding applications. This AR.18 coated N-BK7 prism is 1 x 1 inch (25.4 x 25.4 mm) and 1 inch (25.4 mm) thick. It has a λ/4 surface flatness and a 20-10 surface quality. Newport's AR.18 broadband IR antireflection coating is applied to the three prism faces and supports a 1000 to 1550 nm wavelength range. The antireflection coating reduces surface losses yet does not affect total internal reflection or the acceptance angle. This prism is recommended for general laboratory use in the IR range. By means of total internal reflection (TIR), a right-angle prism may be used as a 90° reflector or as a 180° retroreflector. Except for reflection losses from the entry and exit faces, TIR exhibits 100% reflectivity over a very large wavelength range.

Specifications

Technical Specs

Wavelength Range
1000-1550 nm
Size
25.4 mm
Material
N-BK7
Coating Type
IR Multilayer
Coating Code
AR.18
Surface Quality
20-10 scratch-dig
Surface Flatness
λ/4 at 632.8 nm

Clear Aperture
≥central 80%
Damage Threshold
7.5 J/cm², 10 ns pulses, 20 Hz at 1064 nm
Size Tolerance
+0/-0.25 mm
Chamfers
0.25–0.50 mm face width
Chamfers Angle Tolerance
45° ±15°

Wavelength Range
1000-1550 nm
Size
25.4 mm
Material
N-BK7
Coating Type
IR Multilayer
Coating Code
AR.18
Surface Quality
20-10 scratch-dig
Surface Flatness
λ/4 at 632.8 nm

Clear Aperture
≥central 80%
Damage Threshold
7.5 J/cm², 10 ns pulses, 20 Hz at 1064 nm
Size Tolerance
+0/-0.25 mm
Chamfers
0.25–0.50 mm face width
Chamfers Angle Tolerance
45° ±15°

Resources & Downloads

3D Product Models

Download CAD Files

Other

10BR08AR.18 RoHS Certificate(707.4 kB, PDF)
AR.18 Raw Data.xlsx(113.4 kB, XLSX)

2D Product Drawings

PRISM-DWG.pdf(89.5 kB, PDF)

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