## Optical constants of Ne (Neon)

Bideau-Mehu et al. 1981: n 0.140–0.546 µm

### Complex refractive index (*n+ik)*

### Derived optical constants

### Dispersion formula

$$n-1=\frac{0.00128145}{184.661-λ^{-2}}+\frac{0.0220486}{376.840-λ^{-2}}$$### Conditions & Spec sheet

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

### Comments

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

### References

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) C. Cuthbertson and M. Cuthbertson. The refraction and dispersion of neon and helium. *Proc. R. Soc. London A* **135**, 40-47 (1936)^{*} 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: "182.90" is replaced by "1.8290" in the nominator of the second term before converting the formula to the form used in the refractiveindex.info database.