Precision-engineered double-sided anti-reflection coating designed for silicon (Si) substrates, optimized for the 3.7–4.8 μm mid-infrared (MWIR) atmospheric window. This high-performance A+A coating drastically reduces surface reflection loss, delivering industry-leading light transmission for demanding infrared optical systems. Whether for gas detection, spectroscopy, or thermal imaging, our silicon AR coatings ensure maximum throughput and stable spectral performance in the mid-infrared range.

Description

This is the transmittance curve of silicon substrate with A+A anti-reflection coating, tested in the 3.7–4.8 μm mid-infrared range.

The transmittance reaches the highest about 99.0%–99.1% at 4.2–4.3 μm, with excellent optical performance.
From 4.3 μm to 4.8 μm, the transmittance drops gently. It stays at about 98.6% at 4.8 μm.
The average transmittance of the full 3.7–4.8 μm waveband is 98.86%.

SI AR+AR(3.7-4.8μm)

Description

Related Products

Prism lenses/Filter/Mirror

Die casting

Customized Products (CNC Products)

Aspherical lenses

Spherical lenses

Plane mirror