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Optical constants of FUSED SILICA

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Optical constants of FUSED SILICA
Option:
Wavelength: µm  (0.21~3.71)
Refractive index

Refractive index - Wikipedia

n = 1.45846

Chromatic dispersion

Dispersion (optics) - Wikipedia

dn/dλ = -0.0352 µm-1

Abbe numbers

Abbe number - Wikipedia

Vd = 67.82

Ve = 67.67

Formulae    Abbe diagram

[ Figure: Refractive index of FUSED SILICA ]
Dispersion formula

Sellmeier equation - Wikipedia

$$ n^2 - 1 = \frac{0.6961663 λ^2}{λ^2-0.0684043^2} + \frac{0.4079426 λ^2}{λ^2-0.1162414^2} + \frac{0.8974794 λ^2}{λ^2-9.896161^2} $$

C

n = sqrt( 1 + 0.6961663*pow(x,2)/(pow(x,2)-pow(0.0684043,2)) + 0.4079426*pow(x,2)/(pow(x,2)-pow(0.1162414,2)) + 0.8974794*pow(x,2)/(pow(x,2)-pow(9.896161,2)) )

Fortran

n = SQRT( 1 + 0.6961663*x**2/(x**2-0.0684043**2) + 0.4079426*x**2/(x**2-0.1162414**2) + 0.8974794*x**2/(x**2-9.896161**2) )

Visual Basic

n = SQRT( 1 + 0.6961663*x**2/(x**2-0.0684043**2) + 0.4079426*x**2/(x**2-0.1162414**2) + 0.8974794*x**2/(x**2-9.896161**2) )

Expressions for n

Conditions

Room temperature

References

- I. H. Malitson. Interspecimen Comparison of the Refractive Index of Fused Silica, J. Opt. Soc. Am. 55, 1205-1208 (1965) doi:10.1364/JOSA.55.001205

- Handbook of Optics, 3rd edition, Vol. 4. McGraw-Hill 2009 [link]

Reflection calculator
Angle of incidence (0~90°): 
Direction: in out
Reflectance (at 0.5876 µm)

Fresnel equations - Wikipedia

RS = ... (S-polarized)
RP = ... (P-polarized)
R = ... (non-polarized, (RS+RP)/2 )

Reflection phase

ɸ = ...°
ɸS = ...°
ɸP = ...°

Brewster's angle

Brewster's angle - Wikipedia

θB = ...°

Critical angle

Total internal reflection - Wikipedia

θC = ...°

More info ( wiki )

Fused silica (or fused quartz, or quartz glass) is a type of glass containing primarily silica (SiO2) in amorphous (non-crystalline) form.

External links

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