Nonadiabatic alignment of asymmetric top molecules: Rotational revivals

Journal of Chemical Physics

Volumn 121, Issue 2, 2004, Pages 783-791

  Poulsen, Mikael D ^a   Péronne, Emmanuel ^a,c   Stapelfeldt, Henrik ^a   Bisgaard, Christer Z ^a   Viftrup, Simon S ^a   Hamilton, Edward ^b   Seideman, Tamar ^b  

^a AARHUS UNIVERSITY   (Denmark)

^b NORTHWESTERN UNIVERSITY   (United States)

^c SORBONNE UNIVERSITÉ   (France)

Author keywords

[No Author keywords available]

Indexed keywords

IODOBENZENE; NON-ADIABATIC ALIGNMENT; PHOTOFRAGMENT IMAGING;

EIGENVALUES AND EIGENFUNCTIONS; IMAGING TECHNIQUES; IODINE COMPOUNDS; LASER PULSES; OPTIMIZATION; PARAMETER ESTIMATION; POLARIZATION; QUANTUM THEORY; ROTATION; TENSORS;

MOLECULAR DYNAMICS;

EID: 3242728675     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1760731     Document Type: Article

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38. 3.
39. For consistency we use in the calculation numerical rotational constants, obtained from the same ab initio software as the polarizability tensor; A = 5680.21 MHz, B = 747.88 MHz, and C = 660.87 MHz. We remark that these values differ slightly from the spectroscopic values of Ref. 35.
40. For instance, a constant background signal, depending on the pulse energy, has been observed in DFWM spectra of rotationally cold molecules (Ref. 22). Its value depends on the laser intensity, but its origin has not been explained. We suggest that this background signal is due to permanent alignment as observed both in our calculations (Fig. 5) and in our experiments (Fig. 2).