Comprehensive spectroscopic studies of hot and ultracold samples of NaCs molecules were combined to complete the investigation of the $(3)\ensuremath{\Omega}=1$ $\ensuremath{\leftarrow}$ $X$ ${}^{1}{\ensuremath{\Sigma}}^{+}$ transition for the NaCs molecule. Polarization labeling, photoassociation, and pulsed laser depletion spectroscopy were used to collect data on rovibrational levels of the $(3)\ensuremath{\Omega}=1$ state [here described as the $c$ ${}^{3}{\ensuremath{\Sigma}}^{+}$ state in Hund's case (a) notation]. The highest observed level was $v=72$ located $~$5 GHz below the atomic asymptote Na( $3{ }^{2}{S}_{1/2}$ ) $+$ Cs( $6{ }^{2}{P}_{3/2}$ ). Approximately 1400 levels were used to construct the potential energy curve of the $(3)\ensuremath{\Omega}=1$ state for the full range of interatomic distances.Comprehensive spectroscopic studies of hot and ultracold samples of NaCs molecules were combined to complete the investigation of the $(3)\ensuremath{\Omega}=1$ $\ensuremath{\leftarrow}$ $X$ ${}^{1}{\ensuremath{\Sigma}}^{+}$ transition for the NaCs molecule. Polarization labeling, photoassociation, and pulsed laser depletion spectroscopy were used to collect data on rovibrational levels of the $(3)\ensuremath{\Omega}=1$ state [here described as the $c$ ${}^{3}{\ensuremath{\Sigma}}^{+}$ state in Hund's case (a) notation]. The highest observed level was $v=72$ located $~$5 GHz below the atomic asymptote Na($3{ }^{2}{S}_{1/2}$) $+$ Cs($6{ }^{2}{P}_{3/2}$). Approximately 1400 levels were used to construct the potential energy curve of the $(3)\ensuremath{\Omega}=1$ state for the full range of interatomic distances.

Physical Review AJul 18, 201121 citations

Photoassociation studies of ultracold NaCs from the Cs 62P3/2 asymptote

Amy Wakim, Patrick Zabawa, N. P. Bigelow

A combination of pulsed depletion spectroscopy and photoassociation spectroscopy is utilized to assign photoassociation spectra of NaCs. These methods investigate the ab initio Ω = 2 potential energy curve and indicate a previously unknown avoided crossing between the (3)Ω = 1 and (4)Ω = 1 electronic states. We present rotational assignments of deeply bound singlet ground state molecules, an improved C(6) coefficient for the (4)Ω = 1 and assignments for all twenty-three photoassociation resonances detuned from the Cs 6(2)P(3/2) asymptote.A combination of pulsed depletion spectroscopy and photoassociation spectroscopy is utilized to assign photoassociation spectra of NaCs. These methods investigate the ab initio Ω = 2 potential energy curve and indicate a previously unknown avoided crossing between the (3)Ω = 1 and (4)Ω = 1 electronic states. We present rotational assignments of deeply bound singlet ground state molecules, an improved C(6) coefficient for the (4)Ω = 1 and assignments for all twenty-three photoassociation resonances detuned from the Cs 6(2)P(3/2) asymptote.

Physical Chemistry Chemical PhysicsJan 1, 201112 citations

Dissociation and decay of ultracold sodium molecules

Takashi Mukaiyama

Jan 1, 20040 citations

Comprehensive spectroscopic studies of hot and ultracold samples of NaCs molecules were combined to complete the investigation of the $(3)\ensuremath{\Omega}=1$ $\ensuremath{\leftarrow}$

X

${}^{1}{\ensuremath{\Sigma}}^{+}$ transition for the NaCs molecule. Polarization labeling, photoassociation, and pulsed laser depletion spectroscopy were used to collect data on rovibrational levels of the $(3)\ensuremath{\Omega}=1$ state [here described as the

c

${}^{3}{\ensuremath{\Sigma}}^{+}$ state in Hund's case (a) notation]. The highest observed level was

v=72

located $~$5 GHz below the atomic asymptote Na(

3{ }^{2}{S}_{1/2}

)

+

Cs(

6{ }^{2}{P}_{3/2}

). Approximately 1400 levels were used to construct the potential energy curve of the $(3)\ensuremath{\Omega}=1$ state for the full range of interatomic distances.