Tunable dye-laser emission has been obtained up to 12 850 Å by pumping a dimethyl sulfoxide solution of a carbocyanine dye with an Nd : YAG laser. The solution lased in two distinct wavelength ranges of 11 070–11 870 and 11 920–12 850 Å depending on the dye concentration.
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Kiyoshi Katō (1978) studied this question.
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