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Optical constants of CaCO₃ (Calcite)

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Optical constants of CaCO3 (Calcite)
Option:
Wavelength: µm  (0.204~2.172)
Refractive index

Refractive index - Wikipedia

n = 1.65846

Chromatic dispersion

Dispersion (optics) - Wikipedia

dn/dλ = -0.0680 µm-1

Abbe numbers

Abbe number - Wikipedia

Vd = 49.91

Ve = 49.71

Formulae    Abbe diagram

[ Figure: Refractive index of CaCO3 (Calcite) ]
Dispersion formula

Sellmeier equation - Wikipedia

$$ n^2 = 1.73358749 + \frac{0.96464345 λ^2}{λ^2-1.94325203\text{×}10^{-2}} + \frac{1.82831454 λ^2}{λ^2-120} $$

C

n = sqrt( 1.73358749 + 0.96464345*pow(x,2)/(pow(x,2)-1.94325203e-2) + 1.82831454*pow(x,2)/(pow(x,2)-120) )

Fortran

n = SQRT( 1.73358749 + 0.96464345*x**2/(x**2-1.94325203e-2) + 1.82831454*x**2/(x**2-120) )

Visual Basic

n = SQRT( 1.73358749 + 0.96464345*x**2/(x**2-1.94325203e-2) + 1.82831454*x**2/(x**2-120) )

Expressions for n

Conditions

Room temperature

References

- Gorachand Ghosh. Dispersion-equation coefficients for the refractive index and birefringence of calcite and quartz crystals, Opt. Commun. 163, 95-102 (1999) doi:10.1016/S0030-4018(99)00091-7

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 )

Calcite, CaCO3

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