Optical constants of SiO2 (Silicon dioxide, Silica, Quartz)
Radhakrishnan 1951: α-Quartz; n(e) 0.18–3 µm
Wavelength:
µm
(0.18–3)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.665721λ^2}{λ^2-0.060^2}+\frac{0.503511λ^2}{λ^2-0.106^2}+\frac{0.214792λ^2}{λ^2-0.119^2}+\frac{0.539173λ^2}{λ^2-8.792^2}+\frac{1.807613λ^2}{λ^2-19.70^2}$$Comments
18 °C
References
1) T. Radhakrishnan. Further Studies on the Temperature Variation of the Refractive Index of Crystals, Proc. Indian Acad. Sci. 31, 22-34 (1951)
2) T. Radhakrishnan. The dispersion, briefringence and optical activity of quartz, Proc. Indian Acad. Sci. 25, 260-265 (1947)
Data
INFO
Silicon dioxide, SiO2
Other names
- Quartz
- Silica
- Silicon oxide
- Silicon(IV) dioxide
Polymorphs
- Alpha quartz (α-quartz, most common)
- Beta quartz (β-quartz, only stable at temperatures above 573 °C)
- Tridymite
- Cristobalite
- Coesite
- Stishovite
- Lechatelierite
- Chalcedony