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Citation: Xiong Yi-Jia, Wu Cheng-Yin, Gao Zhen, Kong Fan-Ao, Yang Xiao-Dong, Lu Hai-Ou, Xu Zhi-Zhan. Ionization of Methyl Acetate in Ultra-intense Lasser Field[J]. Acta Physico-Chimica Sinica, ;2000, 16(10): 932-935. doi: 10.3866/PKU.WHXB20001012 shu

Ionization of Methyl Acetate in Ultra-intense Lasser Field

1.
State Key Laboratory of Molecular Reaction Dynamics,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080

Received Date: 18 January 2000
Available Online: 15 October 2000

The tunneling ionization of methyl acetate in the laser intensity range of 4.8× 1013 W• cm－2 to 1.3×1014 W•cm－2 was studied. The modified Keldysh parameter was calculated by the ab initio method. The tunneling probability was calculated by the WKB method. When the laser intensity was larger than 1014 W• cm－ 2,methyl acetate mainly took tunneling ionization mechanism. When the laser intensity was lower than 1014 W•cm－2 multiphoton ionization occurred.
- Methyl aceltate,
- Tunneling ionization,
- Femtosecond laser,
- Keldysh parameter
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