Metal-vapor Lasers
| Laser gain medium and type | Operation wavelength(s) | Pump source | Applications and notes |
|---|---|---|---|
| Helium-cadmium (HeCd) metal-vapor laser | 441.563 nm, 325 nm | Electrical discharge in metal vapor mixed with helium buffer gas. | Printing and typesetting applications, fluorescence excitation examination (i.e. in U.S. paper currency printing), scientific research. |
| Helium-mercury (HeHg) metal-vapor laser | 567 nm, 615 nm | Rare, scientific research, amateur laser construction. | |
| Helium-selenium (HeSe) metal-vapor laser | up to 24 wavelengths between red and UV | Rare, scientific research, amateur laser construction. | |
| Helium-silver (HeAg) metal-vapor laser | 224.3 nm | Scientific research | |
| Strontium Vapor Laser | 430.5 nm | Scientific research | |
| Neon-copper (NeCu) metal-vapor laser | 248.6 nm | Electrical discharge in metal vapor mixed with neon buffer gas. | Scientific research |
| Copper vapor laser | 510.6 nm, 578.2 nm | Electrical discharge | Dermatological uses, high speed photography, pump for dye lasers. |
| Gold vapor laser | 627 nm | Rare, dermatological and photodynamic therapy uses. |
Read more about this topic: List Of Laser Types