149 citations · 337 across the 10 of their papers we have counts for
10 papers
Optical frequency comb Fourier transform spectroscopy of formaldehyde in the 1250 to 1390 cm range: experimental line list and improved MARVEL analysis
Matthias Germann, Adrian Hjältén, Jonathan Tennyson +9
We use optical frequency comb Fourier transform spectroscopy to record high-resolution, low-pressure, room-temperature spectra of formaldehyde (HCO) in the range…
Proton-Electron Mass Ratio from Laser Spectroscopy of HD at the Part-Per-Trillion Level
Sayan Patra, M. Germann, J. -Ph. Karr +7
Accepted values of the masses of several subatomic particles have been under debate since recent measurements in Penning traps produced more precise yet incompatible results, imply…
A methane line list with sub-MHz accuracy in the 1250 to 1380 cm-1 range from optical frequency comb Fourier transform spectroscopy
Matthias Germann, Adrian Hjältén, Vincent Boudon +6
We use a Fourier transform spectrometer based on a difference frequency generation optical frequency comb to measure high-resolution, low-pressure, room-temperature spectra of meth…
Optical Frequency Comb Fourier Transform Spectroscopy of NO at 7.8 μm
Adrian Hjältén, Matthias Germann, Karol Krzempek +5
We use a Fourier transform spectrometer based on a compact mid-infrared difference frequency generation comb source to perform broadband high-resolution measurements of nitrous oxi…
Proton-electron mass ratio from HD revisited
Sayan Patra, J. -Ph. Karr, L. Hilico +3
We present a new derivation of the proton-electron mass ratio from the hydrogen molecular ion, HD. The derivation entails the adjustment of the mass ratio in highly precise the…
Fine- and hyperfine-structure effects in molecular photoionization: II. Resonance-enhanced multiphoton ionization and hyperfine-selective generation of molecular cations
Matthias Germann, Stefan Willitsch
Resonance-enhanced multiphoton ionization (REMPI) is a widely used technique for studying molecular photoionization and producing molecular cations for spectroscopy and dynamics st…
Fine- and hyperfine-structure effects in molecular photoionization: I. General theory and direct photoionization
Matthias Germann, Stefan Willitsch
We develop a model for predicting fine- and hyperfine intensities in the direct photoionization of molecules based on the separability of electron and nuclear spin states from vibr…
Pulsed Electron Holography
Matthias Germann, Tatiana Latychevskaia, Conrad Escher +1
A technique of pulsed low-energy electron holography is introduced that allows for recording highly resolved holograms within reduced exposure times. Therefore, stacks of holograms…
State-selected ion-molecule reactions with Coulomb-crystallized molecular ions in traps
Xin Tong, Tibor Nagy, Juvenal Yosa Reyes +3
State-selected Coulomb-crystallized molecular ions were employed for the first time in ion-molecule reaction studies using the prototypical charge-transfer process $\mathrm{N_2^++N…
Non-destructive Imaging of Individual Bio-Molecules
Matthias Germann, Tatiana Latychevskaia, Conrad Escher +1
Radiation damage is considered to be the major problem that still prevents imaging an individual biological molecule for structural analysis. So far, all known mapping techniques u…