RefractiveIndex.INFO Refractive index database




Optical constants of Ar (Argon)
Bideau-Mehu et al. 1981: n 0.1404-0.5677 µm

Wavelength: µm
 (0.1404 – 0.5677)  

Derived optical constants

logX   logY   eV

Dispersion formula



Standard conditions. 0 °C, 760 torr (101.325 kPa).


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

Additional information

n_is_absolute: true
temperature: 0 °C
pressure: 101325 Pa


1) A. Bideau-Mehu, Y. Guern, R. Abjean, A. Johannin-Gilles. Measurement of refractive indices of neon, argon, krypton and xenon in the 253.7-140.4 nm wavelength range. Dispersion relations and estimated oscillator strengths of the resonance lines. J. Quant. Spectrosc. Rad. Transfer 25, 395-402 (1981)

2) T. Larsén. Beitrag zur Dispersion der Edelgase. Z. Physik 88, 389-394 (1934)

* Sellmeier formula is derived by the authors of ref. 1 using their own data in the 0.1404-0.2537 μm range combined with data from ref. 2 at longer wavelengths.

More info - wiki

Argon, Ar

External links