K.-F. Lai

activity

20202025

most citedPrecision measurement of the fundamental vibrational frequencies of tritium-bearing hydrogen molecules: T

_{2}

, DT, HT

27 citations · 59 across the 9 of their papers we have counts for

collaborators

9 papers

physics.atom-ph2025

Precision measurement of the last bound states in H $_{2}$ and determination of the H + H scattering length

K. -F. Lai, W. Ubachs, M. Beyer

The binding energies of the five bound rotational levels $J = 0 - 4$ in the highest vibrational level $v = 14$ in the X $^{1} Σ_{g}^{+}$ ground electronic state of H $_{2}$ were measured in a three…

physics.atom-ph2023★ 2 cited

Spectroscopic study of the F $^{1} Σ_{g}^{+}$ outer well state in H $_{2}$ , HD and D $_{2}$

K. -F. Lai, M. Beyer, W. Ubachs

Two-photon UV-photolysis of hydrogen sulfide molecules is applied to produce hydrogen molecules in highly excited vibrational levels in the \X\ electronic ground state, up to the d…

physics.atom-ph2021★ 7 cited

Precision measurement of quasi-bound resonances in H $_{2}$ and the H + H scattering length

K. F. Lai, E. J. Salumbides, M. Beyer +1

Quasi-bound resonances of H $_{2}$ are produced via two-photon photolysis of H $_{2}$ S molecules as reactive intermediates or transition states, and detected before decay of the parent m…

physics.atom-ph2021★ 6 cited

Shape resonances in H $_{2}$ as photolysis reaction intermediates

K. -F. Lai, E. J. Salumbides, W. Ubachs +1

Shape resonances in H $_{2}$ , produced as reaction intermediates in the photolysis of H $_{2}$ S precursor molecules, are measured in a half-collision approach. Before desintegrating into…

physics.chem-ph2021★ 14 cited

Photolysis production and spectroscopic investigation of the highest vibrational states in H $_{2}$ (X $^{1} Σ_{g}^{+}$ $v = 13, 14$ )

K. -F. Lai, M. Beyer, E. J. Salumbides +1

Rovibrational quantum states in the $X^{1} Σ_{g}^{+}$ electronic ground state of H $_{2}$ are prepared in the $v = 13$ vibrational level up to its highest bound rotational level $J = 7$ , and in…

physics.atom-ph2020

Fourier-transform VUV spectroscopy of $^{14, 15}$ N and $^{12, 13}$ C

K. -F. Lai, W. Ubachs, N. de Oliveira +1

Accurate Fourier-transform spectroscopic absorption measurements of vacuum ultraviolet transitions in atomic nitrogen and carbon were performed at the Soleil synchrotron. For $^{14…

physics.atom-ph2020★ 3 cited

Two-photon Doppler-free ultraviolet laser spectroscopy on sulphur atoms

K. -F. Lai, E. J. Salumbides, W. Ubachs

The $3 p^{4}$ $^{3}$ P $_{J}$ - $3 p^{3} 4 p$ $^{3}$ P $_{J}$ transition in the sulphur atom is investigated in a precision two-photon excitation scheme under Doppler-free and collision-fr…

physics.atom-ph2020

Lamb-peak spectrum of the HD (2-0) P(1) line

M. L. Diouf, F. M. J. Cozijn, K. -F. Lai +2

A saturation spectroscopy measurement of the P(1) line of the ( $2 - 0$ ) band in HD is performed in a sensitive cavity-enhanced optical setup involving frequency comb calibration. The…

physics.chem-ph2020★ 27 cited

Precision measurement of the fundamental vibrational frequencies of tritium-bearing hydrogen molecules: T $_{2}$ , DT, HT

K. -F. Lai, V. Hermann, T. M. Trivikram +4

High-resolution coherent Raman spectroscopic measurements of all three tritium-containing molecular hydrogen isotopologues T $_{2}$ , DT and HT were performed to determine the ground e…

Precision measurement of the last bound states in H2​ and determination of the H + H scattering length

Spectroscopic study of the F1Σg+​ outer well state in H2​, HD and D2​

Precision measurement of quasi-bound resonances in H2​ and the H + H scattering length

Shape resonances in H2​ as photolysis reaction intermediates

Photolysis production and spectroscopic investigation of the highest vibrational states in H2​ (X1Σg+​ v=13,14)

Fourier-transform VUV spectroscopy of 14,15N and 12,13C