Chuan-liang Li, Chuan-liang Li, Jun-li Zhang, Xiao-hua Yang, Yang-qin Chen. Predissociation of the b3Πg(v=9) State of He2 Excimer[J]. Chinese Journal of Chemical Physics , 2011, 24(2): 125-128. doi: 10.1088/1674-0068/24/02/125-128
Citation: Chuan-liang Li, Chuan-liang Li, Jun-li Zhang, Xiao-hua Yang, Yang-qin Chen. Predissociation of the b3Πg(v=9) State of He2 Excimer[J]. Chinese Journal of Chemical Physics , 2011, 24(2): 125-128. doi: 10.1088/1674-0068/24/02/125-128

Predissociation of the b3Πg(v=9) State of He2 Excimer

doi: 10.1088/1674-0068/24/02/125-128
Funds:  This work is supportedby the National Natural Science Foundation ofChina (No.11034002 and No.11004062), the National Key Basic Research and Development Program of China (No.2010CB922903 and No.2011CB21602), and the Basic Key Program of Shanghai Municipality(No.07JC14017). Chuan-liang Li is grateful to the sup-port of the PhD Program Scholarship Fund of the East China Normal University 2009. The authors thank Pro-fessor Robert J. LeRoy from University of Waterloo for providing his BCONT, RKR and LEVEL programs, and authors are also particularly grateful to Dr. Xing-can Dai from JI-LA and NIST for his helpful and useful suggestions and discussions in simulation.
  • Received Date: 2011-01-11
  • The predissociation of the v=9 level in the b3Πg state by the c3g+ state of helium eximer(He2) was studied based on the newly observed (9, 3) band in the b3Πg-a3u+ system inthe region of 12065~12445 cm-1 employing optical heterodyne-concentration modulationabsorption spectroscopy. With the help of the previous potential energy curves and molecular constants of He2, the corresponding predissociation mechanism for the b3Πg (v=9) state was analyzed. An RKR potential energy curve of b3Πg and an ab initio potential curve of c3g+ were used to calculate the predissociation linewidths that show basic agreement withobservations, which can quantitatively explain the experiments.
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Predissociation of the b3Πg(v=9) State of He2 Excimer

doi: 10.1088/1674-0068/24/02/125-128
Funds:  This work is supportedby the National Natural Science Foundation ofChina (No.11034002 and No.11004062), the National Key Basic Research and Development Program of China (No.2010CB922903 and No.2011CB21602), and the Basic Key Program of Shanghai Municipality(No.07JC14017). Chuan-liang Li is grateful to the sup-port of the PhD Program Scholarship Fund of the East China Normal University 2009. The authors thank Pro-fessor Robert J. LeRoy from University of Waterloo for providing his BCONT, RKR and LEVEL programs, and authors are also particularly grateful to Dr. Xing-can Dai from JI-LA and NIST for his helpful and useful suggestions and discussions in simulation.

Abstract: The predissociation of the v=9 level in the b3Πg state by the c3g+ state of helium eximer(He2) was studied based on the newly observed (9, 3) band in the b3Πg-a3u+ system inthe region of 12065~12445 cm-1 employing optical heterodyne-concentration modulationabsorption spectroscopy. With the help of the previous potential energy curves and molecular constants of He2, the corresponding predissociation mechanism for the b3Πg (v=9) state was analyzed. An RKR potential energy curve of b3Πg and an ab initio potential curve of c3g+ were used to calculate the predissociation linewidths that show basic agreement withobservations, which can quantitatively explain the experiments.

Chuan-liang Li, Chuan-liang Li, Jun-li Zhang, Xiao-hua Yang, Yang-qin Chen. Predissociation of the b3Πg(v=9) State of He2 Excimer[J]. Chinese Journal of Chemical Physics , 2011, 24(2): 125-128. doi: 10.1088/1674-0068/24/02/125-128
Citation: Chuan-liang Li, Chuan-liang Li, Jun-li Zhang, Xiao-hua Yang, Yang-qin Chen. Predissociation of the b3Πg(v=9) State of He2 Excimer[J]. Chinese Journal of Chemical Physics , 2011, 24(2): 125-128. doi: 10.1088/1674-0068/24/02/125-128

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