F. Merkt

activity

20142022

most citedExperimental characterization of singlet scattering channels in long-range Rydberg molecules

93 citations · 324 across the 9 of their papers we have counts for

collaborators

11 papers

physics.atom-ph2024

The Rotational and Spin-Rotational Level Structure of para-H $_{2}^{+}$ from High-Resolution MQDT-Assisted Rydberg-State Spectroscopy

I. Doran, M. Beyer, F. Merkt

The structure of the low-lying rotational levels of the X $^{+}$ $^{2} Σ_{g}^{+}$ ( $v^{+} = 0$ ) vibronic ground state of para-H $_{2}^{+}$ has been determined by combining frequency-comb calibrate…

physics.atom-ph2024

The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H $_{2}^{+}$

Ioana Doran, Nicolas Hölsch, Maximilian Beyer +1

The fundamental vibrational interval of H $_{2}^{+}$ has been determined to be $Δ G_{1/2} = 2191.126 614 (17)$ cm $^{- 1}$ by continuous-wave laser spectroscopy of Stark manifolds of Ry…

physics.atom-ph2022★ 11 cited

Precision millimetre-wave spectroscopy and calculation of the Stark manifolds in high Rydberg states of para-H $_{2}$

Nicolas Hölsch, Ioana Doran, Maximilian Beyer +1

Precision measurements of transitions between singlet ( $S = 0$ ) Rydberg states of H $_{2}$ belonging to series converging on the $X^{+}^{2} Σ_{g}^{+} (v^{+} = 0, N^{+} = 0)$ state of H $_{2}^{+}$ ha…

physics.atom-ph2021★ 27 cited

Multipole-moment effects in ion-molecule reactions at low temperatures: part I -- Ion-dipole enhancement of the rate coefficients of the He $^{+}$ + NH $_{3}$ and He $^{+}$ + ND $_{3}$ reactions at collision energies near $0$ K

Valentina Zhelyazkova, Fernanda B. V. Martins, Josef A. Agner +2

The energy dependence of the rates of the reactions between He $^{+}$ and ammonia (NY $_{3}$ , Y= {H,D}), forming NY $_{2}^{+}$ , Y and He as well as NY $^{+}$ , Y $_{2}$ and He, and the corresponding…

physics.atom-ph2021★ 37 cited

Ion-molecule reactions below 1~K: Observation of a strong enhancement of the reaction rate of the ion-dipole reaction He $^{+}$ + CH $_{3}$ F

Valentina Zhelyazkova, Fernanda B. V. Martins, Josef A. Agner +2

The reaction between He $^{+}$ and CH $_{3}$ F forming predominantly CH $_{2}^{+}$ and CHF $^{+}$ has been studied at collision energies $E_{coll}$ between 0 and $k_{B} \cdot 10$ ~K in a me…

physics.chem-ph2017★ 15 cited

High-resolution spectroscopy of He $_{2}^{+}$ using Rydberg-series extrapolation and Zeeman-decelerated supersonic beams of metastable He $_{2}$

Paul Jansen, Luca Semeria, Frédéric Merkt

Recently, high-resolution spectroscopy of slow beams of metastable helium molecules (He $_{2}^{*}$ ) generated by multistage Zeeman deceleration was used in combination with Rydberg-seri…

The Rotational and Spin-Rotational Level Structure of para-H2+​ from High-Resolution MQDT-Assisted Rydberg-State Spectroscopy

The Zero-Quantum-Defect Method and the Fundamental Vibrational Interval of H2+​

Precision millimetre-wave spectroscopy and calculation of the Stark manifolds in high Rydberg states of para-H2​

Multipole-moment effects in ion-molecule reactions at low temperatures: part I -- Ion-dipole enhancement of the rate coefficients of the He+ + NH3​ and He+ + ND3​ reactions at collision energies near 0 K

Ion-molecule reactions below 1~K: Observation of a strong enhancement of the reaction rate of the ion-dipole reaction He++ CH3​F