Optical constants of CsI (Cesium iodide)
Li 1976: n 0.25–67 µm
Wavelength:
µm
(0.25–67)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=0.27587+\frac{0.68689λ^2}{λ^2-0.130^2}+\frac{0.26090λ^2}{λ^2-0.147^2}+\frac{0.06256λ^2}{λ^2-0.163^2}+\frac{0.06527λ^2}{λ^2-0.177^2}+\frac{0.14991λ^2}{λ^2-0.185^2}+\frac{0.51818λ^2}{λ^2-0.206^2}+\frac{0.01918λ^2}{λ^2-0.218^2}+\frac{3.38229λ^2}{λ^2-161.29^2}$$Comments
297 K (24 °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 is derived by fitting experimental data from several sources.
Data
INFO
Cesium iodide, CsI
Other name
- Caesium iodide