germany france korean
16 years of serving high-end industries
with high-quality products

GaSe (Gallium Selenide)
Gallium selenide is a nonlinear optical material and photoconductor and it is mainly used for such applications as second harmonic generation of CO2-lasers, up-conversion of CO2-laser radiation image into near-IR or visible region, frequencies mixing in the middle IR region, differential frequencies generation (DFG) in the middle IR region from 5.5 to 18.0 µm

Basic properties

Structure 62m; a = 3.74 ; c = 15.89
Density 5.03 g/cm3
Mohs hardness 2
Eg, eV 2.02
Refractive indices at 5.3 µm no = 2.8340; ne = 2.4599
Refractive indices at 10.6 µm no = 2.8136; ne = 2.4389
Refractive index at 0.633 µm no= 2.9365


GaSe cleaved crystals

Diameter/Width 5-30 mm (can be elliptical)
Thickness/Length 0.1-40 mm
Orientation X, Y, Z
Surface quality Cleaved



Copyright “Miracrys” © 2002-2020