Stimulated emission in the ultraviolet by optical pumping from photoionization-produced inner-shell states in Cd(+).
Stimulated emission on three UV transitions in Cd(+) has been observed by transferring population from inner-shell d-electron states, populated by photoionization, to outer-shell p-electron states using the output from a narrow-frequency dye laser. The use of similar techniques in other elements could eventually result in a number of new lasers in the UV and VUV.
Silfvast
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Wood Ii
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Lundberg
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Macklin
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