KCl Substrate
Crystals such as sodium chloride (NaCl), potassium bromide (KBr) and potassium chloride (KCl) are uniform, bright and high transmittance within 0.250-20 μm when thickness less than 10mm, and no impurity absorption. These single crystals are ideal materials for making optical elements for prisms, lenses, filters, and various windows in infrared devices and optical instruments.
OST Photonics offers high quality KCl substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Features
High transmittance within 0.250-20 μm when thickness less than 10 mm
No impurity absorption
Applications
Infrared devices
optical instruments
Processing Capability
Orientation:<100>,<110>,<111>, etc.
Dimension: 1”, 2”, 10x10mm, 20x20mm, etc.
Thickness: 0.5mm, 1.0mm, 2mm, 5mm, etc.
Available items: windows, substrates, blanks and customized optics
Specification and properties of KCl Substrates
Crystal Structure | Cubic |
Growth method | Czochralski |
Melting point | 770 ℃ |
Lattice constant | a=6.291 Å |
Density | 1.98 g/cm3 |
Transmission Band | 0.2-27.50 um |
Refractive Index | 1.49 |
Hygroscopy | Water-soluble crystals susceptible to moisture and cannot be chemically polished |
Orientation | <100>,<110>,<111>, etc. |
Orientation tolerance | ±0.5-2° |
Dimension | 1”, 2”, 10x10mm, 20x20mm, etc. |
Dimension Tolerance | ±0.1 mm or better |
Thickness | 0.5mm, 1.0mm, 2mm, 5mm, etc. |
Thickness Tolerance | ±0.05 mm or better |
Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
Surface Quality | S/D 80/50 or better |
Roughness | ≤30 nm |
Package | Class 100 clean bag, Class 1000 super clean room |