| Original Articles |
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Optimal Feedback Control of Two-Photon Fluorescence Based on Genetic Algorithm |
| XU Yu1,2;ZHANG Shi-An1,2;ZHANG Liang1,2;SUN Zhen-Rong1,2;ZHANG Xiang-Yun1,3;CHEN Guo-Liang1,3;WANG Zu-Geng1,2;LI Ru-Xin4;XU Zhi-Zhan4 |
| 1Key Laboratory of Optical and Magnetic Resonance Spectroscopy of the Ministry of Education, East China Normal University, Shanghai 200062
2Department of Physics, East China Normal University, Shanghai 200062
3Department of Mathematics, East China Normal University, Shanghai 200062
4State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, hanghai 201800 |
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| Cite this article: |
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XU Yu, ZHANG Shi-An, ZHANG Liang et al 2005 Chin. Phys. Lett. 22 2557-2560 |
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Abstract An optimal feedback control of two-photon fluorescence in the ethanol olution of -dicyanomethylene-2-methyl-6-p-dimethyl-aminostryryl-4H-pyran (DCM) sing pulse-shaping technique based on genetic algorithm is emonstrated experimentally. The two-photon fluorescence of the DCM ethanol solution is enhanced in intensity of about 23%. The second armonic generation frequency-resolved optical gating (SHG-FROG) trace ndicates that the effective population transfer arises from the ositively chirped pulse. The experimental results appear the potential pplications of coherent control to the complicated molecular system.
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| Keywords:
42.50.Hz
82.50.Pt
82.53.Uv
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Published: 01 October 2005
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| PACS: |
42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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82.50.Pt
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(Multiphoton processes)
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82.53.Uv
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(Femtosecond probes of molecules in liquids)
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