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Optical constants of CuGaS2 (Copper gallium sulfide)
Boyd et al. 1971: n(o) 0.55-11.5 µm; 120 °C

Wavelength: µm
 (0.55 – 11.5)  
 

Other optical constants

logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=3.0984+\frac{2.1419λ^2}{λ^2-0.1225}+\frac{1.5755λ^2}{λ^2-738.43}$$

Comments

Ordinary ray (o); 120 °C

Data

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

References

1) G. D. Boyd et al.. Linear and nonlinear optical properties of AgGaS2, CuGaS2, and CuInS2, and theory of the wedge technique for the measurement of nonlinear coefficients, IEEE J. Quant. Electron., 7, 563-573 (1971)
2) G. C. Bhar and G. Ghosh. Temperature-dependent Sellmeier coefficients and coherence lengths for some chalcopyrite crystals, J. Opt. Soc. Am. 69, 730-733 (1979)
*Ref. 2 provides Sellmeier equation based on the data from Ref. 1

More info - wiki

Copper gallium sulfide, CuGaS2