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Observation of net gain in the yellow band of K2 excimer by electron-beam pumping

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4 Author(s)
Da Xing ; Institute of Laser Life Science, South China Normal University, Guangzhou 510631, People’s Republic of China ; Qi Wang ; Tan, Shi-ci ; Ueda, Ken-ichi

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The design of a high-temperature cell appropriate for an electron-beam transverse pump of alkali dimer excimer lasers is described. By using the cell, an amplified spontaneous emission and a maximum net gain coefficient of 3% cm-1 of the K2 yellow band (574 nm) were observed from the e-beam-excited mixture of K/K2 vapor with argon buffer gas. The dissociative recombination of K3+ is discussed as an efficient formation process of the upper state by the electron-beam pumping. © 1999 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:74 ,  Issue: 6 )