Gallium selenide (GaSe) is a common infrared nonlinear crystal. Alfa Chemistry offers various types of GaSe crystals. Custom clear apertures and crystal thicknesses from tens of microns to several millimeters are available upon request.
Request bulk or custom formats
1. Wide transparency range from 0.65 μm to 18 μm 2. Large nonlinearity and birefringence 3. Soft and split along the [001] plane 4. Cannot be cut and polished at certain angles
1. Broadband mid-infrared difference frequency generation 2. Second Harmonic (SH) of CO2, CO, Dye Lasers 3. Generation of terahertz (THz) through optical rectification 4. Terahertz Detector for Terahertz Time Domain Spectroscopy (THz-TDS)