Refractive index of Ir (Iridium)

Optical constants of Ir (Iridium)
Hass et al. 1967: n,k 0.005–0.546 µm; deposited at 300 °C

Wavelength: µm

(0.0500–0.5461)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Conditions & Spec sheet

n_is_absolute: true
wavelength_is_vacuum: false
substrate: glass
deposition_temperature: 300 °C

Comments

Thin film deposited at 300 °C

References

G. Hass, G. F. Jacobus, W. R. Hunter. Optical properties of evaporated iridium in the vacuum ultraviolet from 500 Å to 2000 Å, J. Opt. Soc. Am. 57, 758-762 (1967)

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

Iridium, Ir

Iridium (Ir) is a dense, lustrous, and corrosion-resistant transition metal. It is one of the rarest elements in the Earth's crust and has a high melting point, making it ideal for high-temperature applications. Although not transparent, its optical properties are relevant in thin film coatings. Thin layers of iridium can be used as a coating material for mirrors in certain specialized optical systems, including X-ray telescopes. Moreover, the metal is often used in combination with other materials to form highly stable, temperature-resistant, and chemically inert optical surfaces. Its high cost often restricts its usage to specialized applications where other materials would fail. Given its excellent resistance to chemical corrosion, iridium is also used in electrodes for the chlor-alkali process and in certain types of spark plugs.

RefractiveIndex.INFO

Optical constants of Ir (Iridium)
Hass et al. 1967: n,k 0.005–0.546 µm; deposited at 300 °C

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 ]

Conditions & Spec sheet

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

Iridium, Ir

External links

Optical constants of Ir (Iridium)Hass et al. 1967: n,k 0.005–0.546 µm; deposited at 300 °C

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 ]

Conditions & Spec sheet

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

Iridium, Ir

External links

Optical constants of Ir (Iridium)
Hass et al. 1967: n,k 0.005–0.546 µm; deposited at 300 °C