26 citations · 60 across the 4 of their papers we have counts for
4 papers
Ramsey-type microwave spectroscopy on CO ()
A. J. de Nijs, W. Ubachs, H. L. Bethlem
Using a Ramsey-type setup, the lambda-doublet transition in the level of the state of CO was measured to be 394 064 870(10) Hz. In our molecular beam apparatus,…
Sensitivity of rotational transitions in CH and CD to a possible variation of fundamental constants
Adrian J. de Nijs, Wim Ubachs, Hendrick L. Bethlem
The sensitivity of rotational transitions in CH and CD to a possible variation of fundamental constants has been investigated. Largely enhanced sensitivity coefficients are found f…
UV frequency metrology on CO (a3Pi); isotope effects and sensitivity to a variation of the proton-to-electron mass ratio
Adrian J. de Nijs, Edcel J. Salumbides, Kjeld S. E. Eikema +2
UV frequency metrology has been performed on the a3Pi - X1Sigma+ (0,0) band of various isotopologues of CO using a frequency-quadrupled injection-seeded narrow-band pulsed Titanium…
On deflection fields, weak-focusing and strong-focusing storage rings for polar molecules
Adrian J. de Nijs, Hendrick L. Bethlem
In this paper, we analyze electric deflection fields for polar molecules in terms of a multipole expansion and derive a simple but rather insightful expression for the force on the…