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Transmission Curves Print E-mail
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Jump to:
(1) Magnesium Fluoride (MgF2)  Calcium Fluoride (CaF2)  UV-grade Fused Silica (SiO2)  IR-grade Fused Silica (SiO2)
(2) BK7 (BK7)   Crystal Quartz (SiO2)   Germanium (Ge)   Silicon (Si)
(3) Barium Fluoride (BaF2)  Zinc Selenide (ZnSe)  AMTIR (GeAsSe)  Gallium Arsenide (GaAs)
(4) Zinc Sulfide (ZnS) Cleartran (ZnS) Sapphire (Al2O3)  Spinel (MgAl2O4)
Optical Materials Selection Guide



BK7 (BK7)
BK7 (BK7)


Chemical Formula – BK7
Refractive Index (@ 588nm) – 1.51
Useful Wavelength Range
(Transmission) – 320nm to 2.3μm











Crystal Quartz (SiO2)
Crystal Quartz (SiO2)


Chemical Formula – SiO2
Refractive Index (@ .99 micron) – 1.54
Useful Wavelength Range
(Transmission) – 200nm to 2.4μm











Germanium (Ge)
Germanium (Ge)


Chemical Formula – Ge
Refractive Index (@ 4.87 microns) – 4.02
Useful Wavelength Range
(Transmission) – 2.0μm to 17.0μm
































Silicon (Si)
Silicon (Si)


Chemical Formula – Si
Refractive Index (@ 5.0 microns) – 3.42
Useful Wavelength Range
(Transmission) – 1.06μm to 6.7μm
                         30μm to FIR
































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