The permanent electric dipole moment of calcium monodeuteride

The sub-Doppler laser induced fluorescence spectra of numerous branch features in the B (2)Sigma(+) - X (2)Sigma(+)(0, 0) band of calcium monodeuteride were recorded field-free and in the presence of a static electric field of up to 7 kV/cm. The field-free spectra were analyzed to produce an improved set of fine structure parameters for the B (2)Sigma(+)(v = 0) state. The observed electric field induced splittings and shifts were analyzed to produce permanent electric dipole moments of 2.57(3) -and 2.51(3) D for B (2)Sigma(+)(v = 0) and X (2)Sigma(+)(v = 0) states, respectively. The permanent electric dipole moment for the X (2)Sigma(+)(v = 0) state of CaH is estimated to be 2.53(3) D. (C) 2008 American Institute of Physics.