Optical constants of HgGa2S4 (Mercury gallium sulfide)
Kato et al. 2016: n(e) 0.633–10.6 µm
Wavelength:
µm
(0.6328–10.591)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=7.27453+\frac{0.20413}{λ^2-0.10074}+\frac{1098.54}{λ^2-719.62}$$Comments
Room temperature. Extraordinary ray (e).
References
K. Kato, V. Petrov, N. Umemura. Phase-matching properties of yellow color HgGa2S4 for SHG and SFG in the 0.944-10.5910 μm range, Appl. Opt. 55, 3145-3148 (2016)
Data
INFO
Mercury gallium sulfide, HgGa2S4
Mercury gallium sulfide (HgGa2S4) is a ternary compound notable for its non-linear optical properties. It is primarily used in optical applications, such as frequency conversion and phase matching in laser systems. The compound's non-linear optical coefficients make it suitable for second harmonic generation (SHG) and other non-linear processes. However, the presence of mercury in the compound necessitates careful handling due to toxicity risks. Research into this material often focuses on optimizing its non-linear characteristics and improving its thermal and mechanical stability for optical applications.Other names
- Mercury thiogallate
- Mercury gallium sulphide