Experimental and theoretical study of core-excited<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>3</mml:mn><mml:mi>p</mml:mi><mml:mi>n</mml:mi><mml:mi>d</mml:mi></mml:mrow></mml:math>Rydberg series of Mg

Génévriez, Matthieu; Wehrli, Dominik; Merkt, Frédéric

doi:10.1103/physreva.100.032517

Cited by 13 publications

(24 citation statements)

References 60 publications

(127 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…25 MgAr Figure 4: Isotopic shift of the v + = 6 and 7 levels of 25,26 MgAr + with respect to 24 MgAr + determined from PFI-ZEKE photoelectron (circles) and MATI (triangles) spectra, respectively. The solid line is the prediction for the case that the lowest observed level corresponds to v + = 0 (see Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Potential energy function of the X + state From the rovibrational structure of the photoelectron spectrum we determined the potentialenergy function of the Mg + (3s)•Ar X + 2 Σ + state in a least-squares fit. We used an analytical 24 MgAr, 25 MgAr, and 26 MgAr, term values T v + of the vibrational levels of 24 MgAr + , and comparison with calculated values obtained from the analytical potentials given in Eq. (2).…”

Section: Discussionmentioning

confidence: 99%

“…To unambiguously measure the isotopic shifts of vibrational levels we employed the technique of mass-analyzed threshold-ionization (MATI) spectroscopy 19 to record spectra of 24 MgAr, 25 MgAr, and 26 MgAr after separation of the corresponding prompt ions in the timeof-flight spectrum. The two-pulse sequence used in this scheme consisted of a +1.72 V/cm discrimination pulse and a 69 V/cm extraction pulse.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy

et al. 2019

Self Cite

View full text Add to dashboard Cite

The interaction potential characterizing the ground electronic state of MgAr + has been determined from the photoelectron spectrum of the a 3 Π 0 metastable state of MgAr measured at high resolution by pulsed-field-ionization zero-kinetic-energy (PFI-ZEKE) photoelectron spectroscopy. The photoelectron spectrum provides information on the first ten vibrational levels of MgAr + and led to the determination of the adiabatic ionization energy of metastable MgAr (38742.3(20) cm −1), the ground state dissociation energy of MgAr + (1254(20) cm −1), and to a characterization of the rovibrational photoionization dynamics of MgAr.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…In case of a sufficiently long lifetime of the B + state, the members of the 3p complex would provide a set of intermediate states ideally suited to access higher Rydberg states of MgAr + over a broad range of internuclear distances. The complete characterization of this complex, which is the subject of this article and the companion article 28 , represents the first step in our efforts toward obtaining a global picture of the Rydberg series of a molecular cation.…”

Section: Introductionmentioning

confidence: 99%

Complete characterization of the 3p Rydberg complex of a molecular ion: MgAr+. I. Observation of the Mg(3pσ)Ar+ B+ state and determination of its structure and dynamics

Wehrli

Génévriez

Knecht

et al. 2020

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

We report on the experimental observation of the B + 2 Σ + state of MgAr + located below the Mg + (3p 2 P 3/2 ) + Ar( 1 S 0 ) dissociation asymptote. Using the technique of isolated-core multiphoton Rydberg-dissociation spectroscopy, we have recorded rotationally resolved spectra of the B + 2 Σ + (v ) ← X + 2 Σ + (v = 7) transitions which extend from the vibrational ground state (v = 0) to the dissociation continuum above the Mg + (3p 2 P 3/2 ) + Ar( 1 S 0 ) dissociation threshold. The analysis of the rotational structure reveals a transition from Hund's angular-momentum-coupling case (b) at low v values to case (c) at high v values caused by the spin-orbit interaction.Measurements of the kinetic-energy release and the angular distribution of the Mg + fragments detected in the experiments enabled the characterization of the dissociation mechanisms. The vibrational levels of the B + state above v = 6 are subject to predissociation into the Mg + (3p 2 P 1/2 ) + Ar( 1 S 0 ) continuum and the fragment angular distributions exhibit anisotropy β parameters around 0.5, whereas direct dissociation into the continuum above the Mg + (3p 2 P 3/2 ) + Ar( 1 S 0 ) asymptote is characterized by β parameters approaching 2. Molecular ions excited to the B + state with v = 0 − 6 efficiently absorb a second photon to the repulsive part of the 2 Σ + state associated with the Mg + (3d 2 D 3/2,5/2 ) + Ar( 1 S 0 ) continua. The interpretation of the data is validated by the results of ab initio calculations of the low-lying electronic states of MgAr + , which provided initial evidence for the existence of bound vibrational levels of the B + state and for the photodissociation mechanisms of its low vibrational levels.

show abstract

“…The atomic electronic transition moments are calculated from one-electron spin orbitals of Mg + obtained by solving the one-electron Schrödinger equation for a model potential describing the Mg 2+ closed-shell core using a Legendre-Gauss-Lobatto discrete variable representation (DVR) method (see Ref. [48] for details). These values were later adjusted to visually match the overall shape of the experimental spectra, and an optimum was found when scaling all three atomic electronic transition moments by 2 3 .…”

Section: Theorymentioning

confidence: 99%

Characterization of the 3dδ Rydberg state of MgAr+ using a quantum-control optical scheme

et al. 2021

Self Cite

View full text Add to dashboard Cite

We report a spectroscopic investigation of the 3dδ ( = 3 2 , 5 2 ) Rydberg states of the MgAr + molecular cation. Vibrational levels of the 3dδ 3/2 spin-orbit component with v 15 were observed to directly predissociate into charge-transfer continua correlating to the Mg(3s 2 1 S) + Ar + (3p 5 2 P) dissociation limit, making it possible to record their spectra by isolated-core multiphoton Rydberg dissociation spectroscopy. Vibrational states below v = 15, which do not predissociate, were characterized with partial rotational resolution using a multiphoton excitation and dissociation quantum-control scheme that radiatively couples the 3dδ vibronic states to predissociative levels of the 3dπ state. An effective Hamiltonian approach was used to theoretically investigate this scheme, including the origin of the control over the spectral lineshapes provided by the laser detuning. This approach provided results in quantitative agreement with the measured spectra. Potential-energy functions were derived for the 3dδ states from experimental data. They are very similar to the one of the X 2+ 1 + ground state of the MgAr 2+ doubly charged ion, highlighting the Rydberg character of the 3dδ state. Whereas homogeneous charge-transfer interactions play a major role in the dynamics of the Rydberg states of molecular ions, the present study shows that heterogeneous interactions leave these states essentially unaffected.

show abstract

Experimental and theoretical study of core-excited3pndRydberg series of Mg

Cited by 13 publications

References 60 publications

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy

Complete characterization of the 3p Rydberg complex of a molecular ion: MgAr+. I. Observation of the Mg(3pσ)Ar+ B+ state and determination of its structure and dynamics

Characterization of the 3dδ Rydberg state of MgAr+ using a quantum-control optical scheme

Contact Info

Product

Resources

About

Experimental and theoretical study of core-excited3pndRydberg series of Mg

Cited by 13 publications

References 60 publications

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr+ Using PFI-ZEKE Photoelectron Spectroscopy

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr+ Using PFI-ZEKE Photoelectron Spectroscopy

Complete characterization of the 3p Rydberg complex of a molecular ion: MgAr+. I. Observation of the Mg(3pσ)Ar+ B+ state and determination of its structure and dynamics

Characterization of the 3dδ Rydberg state of MgAr+ using a quantum-control optical scheme

Contact Info

Product

Resources

About

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy

Determination of the Interaction Potential and Rovibrational Structure of the Ground Electronic State of MgAr⁺ Using PFI-ZEKE Photoelectron Spectroscopy