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Silicon

Si Monocyrstalline silicon There are two kinds of Monocrystalline Silicon in our company: Transmission Grade and Mirror Grade. As the transmission of optical grade material pulling of monocrystalline silicon (OCZ-Si) are widely used in the mid-infrared (1-6um) band, infrared transmittance over 50%. Float zone silicon crystal can be used in a wider band (1-14 um), the area of the high purity fused silicon (HPFZ - Si) and even can be used in the infrared wave band (greater than 30 um). Monocrystalline silicon is a good laser reflector material. With its good thermal conductivity, excellent thermal stability, low thermal expansion coefficient, monocrystalline silicon relatively low density, low cost, easy to precision machining, the CO2 laser reflector is the preferred basement materials. Yutai Optics can provide deep ultraviolet ( excimer level ), ultraviolet and infrared level calcium fluoride materials and components. orientation: <111>、<110>、<100> etc. shapes:round rod、square plate、step、prism、wedge and so on.
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Crystal Type

Cubic,NaCl type structure

Transmission Range

1.2-15μm; 17…>500μm

Refractive Index

3.41776@ 10μm

Reflective Loss

46.1% @ 10μm

Density

2.3291g/cm3

Melting Point

1414℃

Molecular Weight

28.09

Thermal Conductivity

163.32 W/(m K)@40℃

Specifics Heat

703.4J/(kg K)

Hardness (mohs)

1150(Mohs 7)

Young’s Modulus

131GPa

Shear Modulus

79.9GPa

Bulk Modulus

102GPa

Rupture Modulus

125MPa

Dielectric Constant

13@f=9.37GHz

Solubility Water

insoluble

Crystal Structure

Single crystal, synthetic

Cleavage Planes

(111)

Standard Diameter

3", max. ø 300 mm 

Application

windows,lenses,band pass filter, thermography, ATR crystals, FIR optics, mirrors

 

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