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Optical constants of Water (H₂O)

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Optical constants of Water (H2O)
Option:
Wavelength: µm  (0.2~200)
Refractive index (real part of complex index of refraction)

Refractive index - Wikipedia

n = 1.396

Chromatic dispersion

Dispersion (optics) - Wikipedia

dn/dλ = -0.920 µm-1

Abbe numbers

Abbe number - Wikipedia

Vd = 73.00

Ve = 73.15

Formulae    Abbe diagram

[ Figure: Refractive index of Water (H2O) ]
Extinction coefficient (imaginary part of complex index of refraction)

Dispersion and absorption - Wikipedia

k = 1.1000e-7

Absorption coefficient

Attenuation coefficient - Wikipedia

α = 6.9115e-2 cm-1

[ Figure: Extinction coefficient of Water (H2O) ]
Tabulated data (n, k)

csv (comma separated)   txt (tab separated)

Conditions

25 °C

References

- G. M. Hale and M. R. Querry. Optical Constants of Water in the 200-nm to 200-µm Wavelength Region, Appl. Opt. 12, 555-563 (1973) doi:10.1364/AO.12.000555

Optical transmission calculator
Thickness : 
Include reflection (normal incidence, two surfaces)
Transmittance (at 0.2 µm)

Transmittance - Wikipedia

T = ...

Reflection calculator
Angle of incidence (0~90°): 
Direction: in out
Reflectance (at 0.2 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 )

Water (ice), H2O is the most abundant compound on Earth's surface.

Properties of water

Temperature,
°C
Density,
g/cm3
Cp,
J/(g·K)
Vapour
pressure,
kPa
Viscosity,
μPa·s
Thermal
conductivity,
mW/(m·K)
Dielectric
constant
Surface
Tension,
mN/m
0 0.99984 4.2176 0.6113 1793 561.0 87.90 75.64
10 0.99970 4.1921 1.2281 1307 580.0 83.96 74.23
20 0.99821 4.1818 2.3388 1002 598.4 80.20 72.75
30 0.99565 4.1784 4.2455 797.7 615.4 76.60 71.20
40 0.99222 4.1785 7.3814 653.2 630.5 73.17 69.60
50 0.98803 4.1806 12.344 547.0 643.5 69.88 67.94
60 0.98320 4.1843 19.932 466.5 654.3 66.73 66.24
70 0.97778 4.1895 31.176 404.0 663.1 63.73 64.47
80 0.97182 4.1963 47.373 354.4 670.0 60.86 62.67
90 0.96535 4.2050 70.117 314.5 675.3 58.12 60.82
100 0.95840 4.2159 101.325 281.8 679.1 55.51 58.91

(from [1] with corrections)

External links

References

  1. Handbook of Optical Materials, Marvin J. Weber. CRC Press 2003
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