VIBRATIONALLY RESOLVED RESONANT 2-PHOTON IONIZATION SPECTROSCOPY OF THE 1(3)SIGMA(G)+ (B)[-1(3)SIGMA(U)+(X) TRANSITION OF NA2

被引:16
作者
FARBERT, A
KOCH, J
PLATZ, T
DEMTRODER, W
机构
[1] Fachbereich Physik Universität Kaiserlautern
关键词
D O I
10.1016/0009-2614(94)00492-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Na2 molecules in the weakly bound lowest triplet state 1 3SIGMA(u)+ are formed in a cold supersonic argon beam seeded with sodium. They are excited by a tunable cw Ti:sapphire laser into levels of the 1 3SIGMA(g)+ state which are ionized by an argon ion laser. From a vibrational analysis of the resonant two-photon ionization (RTPI) spectrum the constants T(e) = 17972 +/-4 cm-1, omega-(e) = 100.5 +/- 0.9 cm-1 and omega(e)x(e) = 0.57 +/- 0.03 cm-1 are obtained for the Na2 (1 3SIGMA(g)+) state.
引用
收藏
页码:546 / 552
页数:7
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共 28 条
[21]  
Press WH, 1989, NUMERICAL RECIPES
[22]   HIGH-RESOLUTION LASER SPECTROSCOPY OF CS2 .2. DOPPLER-FREE POLARIZATION SPECTROSCOPY OF THE C 1-PI-U]-X1-SIGMA-G+ SYSTEM [J].
RAAB, M ;
HONING, G ;
DEMTRODER, W ;
VIDAL, CR .
JOURNAL OF CHEMICAL PHYSICS, 1982, 76 (09) :4370-4386
[23]   PREDISSOCIATION LIFETIMES OF THE B3-PI-U STATE OF LI-2 AND THE ACCIDENTAL PREDISSOCIATION OF ITS A1-SIGMA-U+ STATE [J].
SCHMIDTMINK, I ;
MEYER, W .
CHEMICAL PHYSICS LETTERS, 1985, 121 (1-2) :49-56
[24]  
SCHMIDTMINK I, 1987, THESIS U KAISERSLAUT
[25]   FAST QUADRATURE METHOD FOR COMPUTING DIATOMIC RKR POTENTIAL CURVES [J].
TELLINGHUISEN, J .
COMPUTER PHYSICS COMMUNICATIONS, 1973, 6 (05) :221-228
[26]   1ST OBSERVATION OF BOUND CONTINUUM TRANSITIONS IN THE LASER-INDUCED A-1SIGMA-U+-X-1SIGMA-G+ FLUORESCENCE OF NA2 [J].
VERMA, KK ;
BAHNS, JT ;
RAJAEIRIZI, AR ;
STWALLEY, WC ;
ZEMKE, WT .
JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (06) :3599-3613
[27]   HYPERFINE INTERACTION BETWEEN THE SINGLET AND TRIPLET GROUND-STATES OF CS-2 - A TEXTBOOK EXAMPLE OF GERADE UNGERADE SYMMETRY-BREAKING [J].
WEICKENMEIER, H ;
DIEMER, U ;
DEMTRODER, W ;
BROYER, M .
CHEMICAL PHYSICS LETTERS, 1986, 124 (05) :470-477
[28]   NA2C3-SIGMA-G+-]ALPHA-3-SIGMA-U+ BOUND FREE EMISSION BY ELECTRON-BEAM EXCITATION [J].
XING, D ;
UEDA, K ;
ZHANG, Q ;
TAKUMA, H .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1991, 8 (05) :917-922