Refractive index database

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Optical constants of Xe (Xenon)
Bideau-Mehu et al. 1981: n 0.140–0.623 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula


Conditions & Spec sheet

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


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


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) J. Koch. Kungl. Fysiografiska Sällskapets i Lund Förhandlingar (Proceedings of the Royal Physiographic Society at Lund) 19, 173 (1949)

* 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.

** A misprint is corrected in the Sellmeier formula: "50.578" is replaced by "59.578" in the denominator of the second term.


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Xenon, Xe

Xenon (Xe) is a noble gas that exists as a colorless, dense, odorless gas under standard conditions. It's one of the rare gases found in the Earth's atmosphere, representing only a tiny fraction of the air we breathe. Due to its heavy atomic weight and low reactivity, xenon is often used in specialized lighting, including powerful flash lamps, high-intensity arc-lamps, and as the propellant in ion engines for deep space missions. In medicine, xenon has been explored as an anesthetic and in imaging. Its isotopes also find use in various applications, such as the detection of neutrinos in particle physics experiments. Xenon can form compounds, albeit rarely, with highly electronegative elements like fluorine.

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