Schema of adiabatic potential energy curves for the low-lying and states of the NaCs molecule. Full circles denote the empirical PECs available for the ground (Ref. 5), (Ref. 4), and (Ref. 7) states. The excited states solid and dashed lines correspond to “difference-based” PECs constructed from the present MPPT and pseudopotential curves of Ref. 8, respectively.
Examples of the appearance of “forbidden” lines in the LIF spectrum after applying a dc electric field. (a) for the “parent” lines; (b) for the “parent” line.
Experimental electric field dependence of “forbidden” to “parent” LIF lines intensity ratio (full circles) and (open circles). The respective solid and dashed lines correspond to the best fit yielding . , , and denote external electric field, exciting light, and LIF polarization directions, respectively.
Experimental rf-ODR signal for state , level approximated by a Lorentzian contour (dashed line).
The state values measured by rf-ODR (open circles, numbers denote values) fitted by a third order polynomial (5) (solid line). The dotted line presents a linear fit of FTS values from Ref. 7 while the dashed line depicts present MPPT calculations.
Experimental (circles, numbers denote value) and theoretical (for , dashed line) permanent electric dipole moments for the state.
Calculated permanent electric dipole moments for the states. (a) function; (b) function. The dotted lines represent calculations for and while the solid line represents calculations for . Negative values indicate polarity.
Ab initio -coupling matrix elements between the and states.
Partial contributions of the six lowest states into the factor of the state.
laser excitation lines (in nm) or dye laser frequencies (in ), experimental term values (in ), absolute value of factors (in ), and permanent electric dipole moments (in Debye) for the particular rovibronic levels of the NaCs state excited from the state.
Article metrics loading...
Full text loading...