Refractive index of Kapton

Optical constants of Kapton
Kawka and Buckius 2001: n 1.44–4.97 µm, k 1.82–4.98 µm

Wavelength: µm

(1.44–4.98)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Comments

Fourier transform infrared (FTIR) spectroscopy is used to measure the bidirectional reflectivity of polyimide films on gold substrates in the infrared. The optical constants of cured polyimide are determined in the infrared region using a Lorentz model to characterize the absorption bands.

References

P.A. Kawka, R.O. Buckius. Optical Properties of Polyimide Films in the Infrared. Int. J. Thermophys. 22, 517–534 (2001)

Data

[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 = °

INFO

Kapton

Kapton is a polyimide film developed by DuPont in the late 1960s that remains stable across a wide range of temperatures.

RefractiveIndex.INFO

Optical constants of Kapton
Kawka and Buckius 2001: n 1.44–4.97 µm, k 1.82–4.98 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 ]

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

Kapton

External links

Optical constants of KaptonKawka and Buckius 2001: n 1.44–4.97 µm, k 1.82–4.98 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 ]

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

Kapton

External links

Optical constants of Kapton
Kawka and Buckius 2001: n 1.44–4.97 µm, k 1.82–4.98 µm