A K-N2 mixture is irradiated in a glass fluorescence cell with pulses of 710 nm radiation from an OPO laser, populated K2 (1Λg)state by two-photon absorption. The cross section for 1Λg →3Λg transfer in K2 is determined using molecular fluorescence spectrometry. The cell temperature is kept constant at 553 K. The N2 pressure is varied between 40 Pa and 400 Pa. The effects of K2-K collisions could not be neglected. These effects are subtracted out by using the results of the pure K experiment. The cross sections are (3.8±1.5)×10-15 cm2 for K2 (1Λg)+N2 → K2 (3Λg)+N2 and (8.9± 3.5)×10-15cm2 for K2 (3Λg) collisions with N2.
A K-N2 mixture is irradiated in a glass fluorescence cell with pulses of 710 nm radiation from an OPO laser, populated K2 (1Λg)state by two-photon absorption. The cross section for 1Λg →3Λg transfer in K2 is determined using molecular fluorescence spectrometry. The cell temperature is kept constant at 553 K. The N2 pressure is varied between 40 Pa and 400 Pa. The effects of K2-K collisions could not be neglected. These effects are subtracted out by using the results of the pure K experiment. The cross sections are (3.8±1.5)×10-15 cm2 for K2 (1Λg)+N2 → K2 (3Λg)+N2 and (8.9± 3.5)×10-15cm2 for K2 (3Λg) collisions with N2.
CUI Xiu-Hua;MU Bao-Xia;DAI Kang;SHEN Yi-Fan. Excitation Transfer for K2 in High-Lying States by N2[J]. 中国物理快报, 2010, 27(7): 73401-073401.
CUI Xiu-Hua, MU Bao-Xia, DAI Kang, SHEN Yi-Fan. Excitation Transfer for K2 in High-Lying States by N2. Chin. Phys. Lett., 2010, 27(7): 73401-073401.
[1] Hattaway B C et al 2004 J. Chem. Phys. 120 1739 [2] Polly R et al 1996 Chem. Phys. Lett. 249 174 [3] Zhou B and Li S M 2009 Chin. Phys. Lett. 26 043401 [4] ShenY F et al 2006 Chin. Phys. Lett. 23 1173 [5] Flynn G W, Parmenter C S and Wodtke A M 1996 J. Phys. Chem. 100 12817 [6] Fecko C J, Freedman M A and Stephenson J A 2001 J. Chem. Phys. 115 4132 [7] Niu Y Y, Wang R, Liu L and Cong S L 2007 Chin. Phys. Lett. 24 3400 [8] Figl C et al 2004 J. Chem. Phys. 121 11068 [9] Luo Y L, Lin K C, Liu D K and Liu H J 1992 Phys. Rev. A 46 3834 [10] MA J et al 2007 Chin. Phys. Lett. 24 1904 [11] Chang H C, Luo Y L and Lin K C 1991 J. Chem. Phys. 94 3529 [12] Chang Y P et al 2008 J. Chem. Phys. 128 234309 [13] ShenY F et al 2005 Chin. Phys. Lett. 22 2805 [14] Magnier S and Millie Ph 1996 Phys. Rev. A 54 204 [15] Zhang Y W et al 2009 Chin. J. At. Mol. Phys. 26 859 (in Chinese) [16] Vadla C, Knezovic S and Movre M 1992 J. Phys. B 25 1337 [17] Wang G and Jia S T 1995 Chin. J. At. Mol. Phys. 12 299 (in Chinese)
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