Optical constants of Kapton
Smith and Loewenstein 1975: n,k 28.6-182 µm

Wavelength: µm

(28.5714 – 181.8182)

Derived optical constants

Comments

Polyimide manufactured by DuPont under the name Kapton.

References

D. R. Smith and E. V. Loewenstein. Optical constants of far infrared materials. 3: plastics, Appl. Opt. 14, 1335-1341 (1975)

Data

[CSV - comma separated] [TXT - tab separated] [Full database record]

Optical transmission calculator

Thickness:
Calculation method:

Transmittance (at µm)[ i ]

T =

logX logY eV

Reflection calculator

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

Reflectance (at µm)[ i ]

R_S = (S-polarized)
R_P = (P-polarized)
R = (non-polarized, (R_S+R_P)/2 )

Reflection phase[ i ]

ɸ = °
ɸ_S = °
ɸ_P = °

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

Refractive index database

Optical constants of Kapton
Smith and Loewenstein 1975: n,k 28.6-182 µm

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 (at µm)[ i ]

Reflection calculator

Reflectance (at µm)[ i ]

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Kapton

External links

Optical constants of KaptonSmith and Loewenstein 1975: n,k 28.6-182 µm

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 (at µm)[ i ]

Reflection calculator

Reflectance (at µm)[ i ]

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Kapton

External links

Optical constants of Kapton
Smith and Loewenstein 1975: n,k 28.6-182 µm