RefractiveIndex.INFO

Refractive index database


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Optical constants of NaI (Sodium iodide)
Li 1976: n 0.25-40 µm

Wavelength: µm
 (0.25 – 40)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=0.478+\frac{1.532λ^2}{λ^2-0.170^2}+\frac{4.27λ^2}{λ^2-86.21^2}$$

Conditions & Spec sheet

temperature: 297 K

Comments

297 K (23.85 °C).

References

H. H. Li. Refractive index of alkali halides and its wavelength and temperature derivatives. J. Phys. Chem. Ref. Data 5, 329-528 (1976) and references therein.
* Sellmeier formula derivation is based on a single data point and knowledge of the dielectric constants and the characteristic absorption peaks.

Data

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

INFO

Sodium iodide, NaI

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