Optical constants of BaGa4Se7 (Barium gallium selenide, BGSe)
Badikov et al 2010: n(γ) 0.480–10.4 µm
Wavelength:
µm
(0.48–10.4)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=7.764197+\frac{0.326812}{λ^2-0.069734}+\frac{1975.857}{λ^2-1297.079}$$Comments
nγ; room temperature.
References
V. Badikov, D. Badikov, G. Shevyrdyaeva, A. Tyazhev, G. Marchev, V. Panyutin, V. Petrov, A. Kwasniewski. Phase-matching properties of BaGa4S7 and BaGa4Se7: Wide-bandgap nonlinear crystals for the mid-infrared, Phys. Status Solidi RRL, 5, 31–33 (2010)