High-Precision N-BK7 Coating Substrate OWS101-2T4
JCOPTIX offers four high-precision N-BK7 coating substrates: uncoated and single-side broadband antireflection versions for 350-700 nm, T2; 650-1100 nm, T3; and 1050-1700 nm, T4. N-BK7 is the most common borosilicate crown optical glass, with excellent performance at moderate cost. N-BK7 offers high homogeneity, few bubbles, low impurities, and easy manufacturing for visible and near-infrared optics. N-BK7 often replaces UV fused silica when high UV transmission and lower thermal expansion are unnecessary. Ready-to-use substrates are ultrasonically cleaned, dried, and cleanroom-packaged for direct research coating or sample preparation, saving cleaning time. Sealed dust-free blister boxes hold 20 standard pieces for a single experiment and prevent secondary contamination from prolonged storage after opening. JCOPTIX offers precision windows in various substrates and custom sizes and coatings through technical support.
Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | N-BK7 |
| Dimensions | Ø25.4 mm |
| Operating Wavelength | 1050-1700 nm |
| Surface quality (scratch/dig) | 20/10 |
| Surface Flatness [@633 nm] | λ/4 |
| Thickness | 1.6 mm |
| Thickness Tolerance | ± 0.1 mm |
| Number of Substrates | 20 pcs |
| Diameter Tolerance | +0.00/-0.20 mm |
| Surface parallelism | ≤ 30 arcsec |
| Coating [Single Side, 1050-1700 nm] | Single-Side Antireflection Coating T4, 1050-1700 nm, R_avg<0.5% |
| Reflection R_avg [1050-1700 nm (6° Angle of Incidence, Single Side)] | R_avg<0.5% @1050-1700 nm (6° Incidence, Single Side) |
Key Features
Datasheet
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