Simple metal-vapor recombination lasers using segmented plasma excitation

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Abstract
A new type of electrically excited laser device has been developed using a new pumping scheme which involves segmented plasma excitation and recombination (SPER). SPER laser action is produced in a metal species when a series of small vaporized plasmas, formed in the gaps between a row of metal electrodes subjected to a high‐voltage pulse, is allowed to expand and recombine. To date, laser action at 17 wavelengths between 0.94 and 1.84 μm in 8 metal vapors has been observed. This device is simple to construct, has a long operating life, and has the potential for high efficiency.