Kong Xianglei, Niu Dongmei, Luo Xiaolin, Zhang Xianyi, Zhang Shudong, Kan Ruifeng, Li Haiyang. Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields[J]. Chinese Journal of Chemical Physics , 2004, 17(5): 513-517. doi: 10.1088/1674-0068/17/5/513-517
Citation: Kong Xianglei, Niu Dongmei, Luo Xiaolin, Zhang Xianyi, Zhang Shudong, Kan Ruifeng, Li Haiyang. Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields[J]. Chinese Journal of Chemical Physics , 2004, 17(5): 513-517. doi: 10.1088/1674-0068/17/5/513-517

Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields

doi: 10.1088/1674-0068/17/5/513-517
Funds:  Project supported by the 863 Program (2001AA641040, 2002AA649010) and the National Natural Science Foundation of China (20073042).
  • Received Date: 2003-04-16
  • The photo ionization of furan by an intense 25 ns Nd:YAG 532 nm laser has been studied by time-of-flight mass spectrometry. At the laser intensity of 1010~1011 W/cm2, multi-charged ions Can+ (n=2~4) and Ohm+ (m=2~3) appeared in the mass spectra when argon was used as the carrier gas. From the peak splitting and the numeric analysis, the most probable kinetic energies of C2+, C3+ and C4+ were confirmed to be 21、63 and 100 eV respectively, and the most probable kinetic energies of O2+ and O3+ were confirmed to be 20 and 40 eV respectively. It is proposed that the multi-charged ions come from the Coulomb explosion of furan cluster ions produced by multi photon ionization of neutral furan cluster.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields

doi: 10.1088/1674-0068/17/5/513-517
Funds:  Project supported by the 863 Program (2001AA641040, 2002AA649010) and the National Natural Science Foundation of China (20073042).

Abstract: The photo ionization of furan by an intense 25 ns Nd:YAG 532 nm laser has been studied by time-of-flight mass spectrometry. At the laser intensity of 1010~1011 W/cm2, multi-charged ions Can+ (n=2~4) and Ohm+ (m=2~3) appeared in the mass spectra when argon was used as the carrier gas. From the peak splitting and the numeric analysis, the most probable kinetic energies of C2+, C3+ and C4+ were confirmed to be 21、63 and 100 eV respectively, and the most probable kinetic energies of O2+ and O3+ were confirmed to be 20 and 40 eV respectively. It is proposed that the multi-charged ions come from the Coulomb explosion of furan cluster ions produced by multi photon ionization of neutral furan cluster.

Kong Xianglei, Niu Dongmei, Luo Xiaolin, Zhang Xianyi, Zhang Shudong, Kan Ruifeng, Li Haiyang. Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields[J]. Chinese Journal of Chemical Physics , 2004, 17(5): 513-517. doi: 10.1088/1674-0068/17/5/513-517
Citation: Kong Xianglei, Niu Dongmei, Luo Xiaolin, Zhang Xianyi, Zhang Shudong, Kan Ruifeng, Li Haiyang. Generation of Multi-charged Ions in Laser-induced Ionization of Furan under Intense Nanosecond Laser Fields[J]. Chinese Journal of Chemical Physics , 2004, 17(5): 513-517. doi: 10.1088/1674-0068/17/5/513-517

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