Refractive index of KNbO3 (Potassium niobate)

Optical constants of KNbO₃ (Potassium niobate)
Umemura et al. 1999: n(α) 0.40–5.3 µm

Wavelength: µm

(0.4–5.3)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Dispersion formula [ i ]

$$n^2=4.4222+\frac{0.09972}{λ^2-0.05496}-0.01976λ^{2}$$

Comments

n_α; 22 °C.

References

N. Umemura, K. Yoshida, and K. Kato. Phase-matching properties of KNbO₃ in the mid-infrared, Appl Opt. 38, 991-994 (1999)

Data

[Expressions for n] [CSV - comma separated] [TXT - tab separated] [Full database record]

Optical transmission calculator

Wavelength: µm
Thickness:
Calculation method:

Transmittance[ i ]

T =

LogX LogY eV

Reflection calculator

Wavelength: µm
Angle of incidence (0~90°):
Direction: in out

Reflectance[ i ]

P-polarized

R_P =

S-polarized

R_S =

Non-polarized (Rp+Rs)/2

R =

R_P R_S R LogY

Reflection phase[ i ]

ɸ_P = °
ɸ_S = °

Brewster's angle[ i ]

θ_B = °

Critical angle[ i ] [ i ]

θ_C = °

RefractiveIndex.INFO

Optical constants of KNbO₃ (Potassium niobate)
Umemura et al. 1999: n(α) 0.40–5.3 µm

Complex refractive index (n+ik)[ i ]

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Comments

References

Data

Optical transmission calculator

Transmittance[ i ]

Reflection calculator

Reflectance[ i ]

P-polarized

S-polarized

Non-polarized (Rp+Rs)/2

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Potassium niobate, KNbO₃

Optical constants of KNbO3 (Potassium niobate)Umemura et al. 1999: n(α) 0.40–5.3 µm

Complex refractive index (n+ik)[ i ]

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Comments

References

Data

Optical transmission calculator

Transmittance[ i ]

Reflection calculator

Reflectance[ i ]

P-polarized

S-polarized

Non-polarized (Rp+Rs)/2

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Potassium niobate, KNbO3

Optical constants of KNbO₃ (Potassium niobate)
Umemura et al. 1999: n(α) 0.40–5.3 µm

Potassium niobate, KNbO₃