SmarTeam

 

Silicon

Optical Material Information*

Chemical Formula

Si

Refractive Index (at 5.00 microns)

3.42

Knoop Hardness (psi)

1150

Modulus of rupture (psi)

9000

Useful Wavelength Range, Transmission (microns)

1.0-100

Useful Wavelength Range, ATR (microns)

1.06-6.7; 30-FIR

Maximum Useful Temperature (ēC)

300

Melting Point (ēC)

1420

General properties

Hard; withstands thermal and mechanical shock; high thermal conductivity; metallic appearance.

Chemical Properties

Insoluble in most acids and bases; insoluble in HF; soluble in HF and HNO3 mixture; insoluble in water.

Clean with…

Alcohol, acetone, water.

*This was compiled from various sources. For more details, consult the Chemical Abstracts Service at www.cas.org.

Transmission Spectrum

 

Transmission Spectrum for Several Different Temperatures
(5.89 mm thickness)

 

 

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