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Optical constants of Si3N4 (Silicon nitride)
Philipp 1973 - n 0.207-1.24 µm

Wavelength: µm
 (0.207 – 1.24)  
 

Other optical constants

logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{2.8939λ^2}{λ^2-0.13967^2}$$

Data

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

References

1) H. R. Philipp. Optical properties of silicon nitride, J. Electrochim. Soc. 120, 295-300 (1973)
2) T. Bååk. Silicon oxynitride; a material for GRIN optics, Appl. Optics 21, 1069-1072 (1982)
*Ref.2 provides dispersion formula based on the data from Ref. 1

More info - wiki

Silicon nitride, Si3N4

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