Degenerate four-wave mixing based on excited-state absorption in azo-dye-doped polymer films |
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| Authors: | H. Fei Y. Yang Z. Wei L. Han Y. Che P. Wu G. Sun |
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| Affiliation: | (1) Department of Physics, Jilin University, 130023 Changchun, People's Republic of China |
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| Abstract: | Degenerate Four-Wave Mixing (DFWM) based on excited-state absorption in azo-dye doped polymer films is firstly reported. Under a pre-exciting argon laser at 514.5 nm, DFWM is performed using a 632.8 nm HeNe laser which is absorbed only slightly when the molecules are in the ground state. The dynamic behavior of the DFWM signal due to excited-state absorption is also treated theoretically. |
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| Keywords: | 42.30 42.65 42.70 42.40 |
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