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Amplifier gain measurements were made on the dye rhodamine 6G in ethanol. Gain was measured as a function of wavelength and time for a 1 × 10−4 M solution. The peak gain coefficient was measured to be 95 dB/m at a pump energy of 21.5 J. This same pump energy produced 55 mJ of laser output from a 3.8-cm-long cell in a mode diameter of 3.6 mm.
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B. G. Huth (1970) studied this question.
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