194 citations · 403 across the 7 of their papers we have counts for
7 papers
High-resolution 'magic'-field spectroscopy on trapped polyatomic molecules
Alexander Prehn, Martin Ibrügger, Gerhard Rempe +1
Rapid progress in cooling and trapping of molecules has enabled first experiments on high resolution spectroscopy of trapped diatomic molecules, promising unprecedented precision.…
High-resolution spectroscopy on cold electrically trapped formaldehyde
Alexander Prehn, Martin Ibrügger, Gerhard Rempe +1
We present precision spectroscopy on electrically trapped formaldehyde (HCO), demonstrating key attributes which will enable molecular spectroscopy with unprecedented precision…
Fast, precise, and widely tunable frequency control of an optical parametric oscillator referenced to a frequency comb
Alexander Prehn, Rosa Glöckner, Gerhard Rempe +1
Optical frequency combs (OFC) provide a convenient reference for the frequency stabilization of continuous-wave lasers. We demonstrate a frequency control method relying on trackin…
Rotational cooling of trapped polyatomic molecules
Rosa Glöckner, Alexander Prehn, Barbara G. U. Englert +2
Controlling the internal degrees of freedom is a key challenge for applications of cold and ultracold molecules. Here, we demonstrate rotational-state cooling of trapped methyl flu…
Optoelectrical cooling of polar molecules to sub-millikelvin temperatures
Alexander Prehn, Martin Ibrügger, Rosa Glöckner +2
We demonstrate direct cooling of gaseous formaldehyde (H2CO) to the microkelvin regime. Our approach, optoelectrical Sisyphus cooling, provides a simple dissipative cooling method…
Rotational state detection of electrically trapped polyatomic molecules
Rosa Glöckner, Alexander Prehn, Gerhard Rempe +1
Detecting the internal state of polar molecules is a substantial challenge when standard techniques such as resonance-enhanced multi photon ionization (REMPI) or laser-induced fluo…