Description of Potassium Chloride Crystal Substrates
Sodium chloride, potassium chloride, potassium bromide single-crystal uniform texture and transparent, has a high infrared transmittance, the transmittance greater than 90% when thickness less 10mm and in the range of 4000-500cm-1, no impurity absorption. KCI single crystal as a laser window material, the optical performance is excellent.
Specifications of Potassium Chloride Crystal Substrates
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Crystal structure
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Cubic a=6.291Å
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Growth method
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Crystallization process
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Transmission band
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0.20~27.50um
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Density
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1.98（g/cm3）
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Melting point
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770°C
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Refractive index
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1.49025
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Transmittance
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0.91
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Nf (Impurity absorption peak)
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0.01114
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Orientation
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<111>, <110>, <100> ±0.5º
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Standard Dimensions
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10x10x1.0mm, 20x20x1.0mm.
10x10x2.0mm, 20x20x2.0mm.
Dia 1"x2.0mm, Dia 2"x3.0mm
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Polishing
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Single side polished or Double side polished
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Surface Quality
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Surface finish: 60/40,
Roughness: Ra< 10nm (Can reach Ra<5nm)
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Applications of Potassium Chloride Crystal Substrates
The application of KCl substrate usually used for infrared transmission windows and FTIR spectrophotometers. It’s also useful for CO2 lasers.
Package of Potassium Chloride Crystal Substrates
Each KCl Crystal Substrate is carefully packed in a moisture-resistant, anti-static package to ensure protection from environmental factors such as humidity and contamination during transport and storage. Custom packaging options are available for bulk orders or special shipping requirements.
FAQs
Q1 What are the common uses of KCl crystal substrates?
KCl crystal substrates are widely used in semiconductor manufacturing, particularly for thin-film growth. They are also used in optical device fabrication, laboratory research, and in the development of epitaxial layers for various applications, including microelectronics, photonics, and materials science.
Q2. What are the key characteristics of KCl crystal substrates?
KCl crystal substrates are known for their high-quality single crystal structure, smooth surface for deposition, and ability to support epitaxial growth of various materials. They typically have high purity, low surface roughness, and consistent thickness, making them ideal for precision applications.
Q3. What is the difference between KCl crystal substrates and other crystal substrates?
KCl crystal substrates differ from other materials like sapphire or silicon in their chemical composition and crystal structure. They have distinct properties, such as better transparency in certain wavelengths of light and specific advantages in certain thin-film deposition processes. KCl is particularly useful in applications requiring a halide crystal structure.
