How Researchers Use Our Products
How Researchers Use Ardara
Explore the instrument challenge, the Ardara solution selected, and the performance reported by each research team.
Used by researchers
2012
University of California, Berkeley and Lawrence Berkeley National Laboratory
Slow Photoelectron Velocity-Map Imaging Spectroscopy of Cold Negative Ions
- Solution used
- Multiple radio-frequency supplies for hexapole, quadrupole, and octupole ion optics
The cryogenic photoelectron imaging instrument used Ardara RF supplies at several stages: a hexapole guide operated near 3 MHz and 200 Vpp, a quadrupole stage near 1.15 MHz, and an octupole trap with RF amplitudes up to 500 Vpp. These stages guided and trapped cold negative ions before velocity-map imaging. The completed system produced ion temperatures of 10 +/- 2 K and spectral peak widths as narrow as 4 inverse centimeters. This is a strong example of Ardara supplies coordinating multiple ion-optical elements in a precision spectroscopy instrument.
Published by Hock et al. in Review of Scientific Instruments (2012).
Used by researchers
2018
University of Florida
Operation and Performance of a Mass-Selective Cryogenic Linear Ion Trap
- Solution used
- Quadrupole mass filter upstream of a cryogenic linear ion trap
An Ardara quadrupole mass filter provided initial mass selection before ions entered a cryogenic linear ion trap. The platform produced reproducible spectra from 17 to 295 K and used stored-waveform inverse Fourier transform isolation to select fragile, nitrogen-tagged ions for background-free infrared spectroscopy. This use case connects Ardara mass-selection hardware with low-temperature ion chemistry and action spectroscopy, where clean precursor selection and stable transmission directly affect spectral quality.
Published by Tesler et al. in Journal of the American Society for Mass Spectrometry (2018).
Used by researchers
2021
Korea Advanced Institute of Science and Technology
Observation of the Ponderomotive Effect in Non-Valence Bound States of Polyatomic Molecular Anions
- Solution used
- RF generators for hexapole and octopole ion guides
Ardara RF generators powered the hexapole and octopole guides used to transport and prepare molecular anions for photodetachment spectroscopy. The authors reported the first experimental demonstration of the ponderomotive effect in non-valence-bound states of polyatomic molecular anions. The case is notable because the Ardara RF hardware supported a fundamental molecular-physics measurement in which stable ion guidance and well-controlled fields were prerequisites for observing a subtle light-matter interaction.
Published by Kang et al. in Nature Communications (2021).
Used by researchers
2022
FELIX Laboratory, University of Amsterdam, and Radboud University
Gas-Phase Spectroscopy of Photostable PAH Ions from the Mid- to Far-Infrared
- Solution used
- Electron-impact ionizer for forming radical cations
An Ardara electron-impact ionizer generated radical cations of phenanthrene, pyrene, and perylene for infrared multiple-photon dissociation measurements in a 7 T FT-ICR mass spectrometer. Spectra covering approximately 100 to 1700 inverse centimeters were compared with the NASA Ames PAH database and theoretical predictions. The work demonstrates an Ardara ion source contributing to laboratory astrophysics: producing well-defined polycyclic aromatic hydrocarbon ions needed to interpret unidentified astronomical infrared emission features.
Published by Wiersma et al. in Monthly Notices of the Royal Astronomical Society (2022).
Used by researchers
2023
Korea Advanced Institute of Science and Technology
Excited-State Chemistry of the Nitromethane Anion Mediated by the Dipole-Bound States Revealed by Photofragment Action Spectroscopy
- Solution used
- Radio-frequency quadrupole mass filter for initial mass selection
The experiment used an Ardara RF quadrupole mass filter to isolate nitromethane anions before transfer into a 25 K ion trap for photofragment action spectroscopy. The authors reported the first experimental observation of an excited dipole-bound state of the nitromethane anion and mapped its role in the excited-state reaction pathway. The Ardara filter provided the clean precursor population needed to assign weak, state-specific photochemical features with confidence.
Published by An et al. in Chemical Science (2023).
Co-developed with Ardara
2026
University of Maryland and Ardara Technologies
Development of a Glow-Discharge Ion-Trap Instrument for Measuring Effective Radiative-Association Rate Coefficients
- Solution used
- Custom glow-discharge ion source, RF-only rectilinear guide with asymptotic rods, deflectors, quadrupole mass filter, detectors, and linear ion trap
The instrument combined a custom Ardara-designed glow-discharge source with ion transport, mass selection, detection, and trapping subsystems for low-temperature ion chemistry. Its first pressure-dependent study examined Ag+ reacting with O2 and placed a lower limit of 1 x 10^-15 cubic centimeters per molecule per second on the effective radiative-association rate coefficient. This coauthored work documents Ardara's role in building a complete experimental chain for a specialized reaction-kinetics problem.
Published by Kisuryna et al.; Randall E. Pedder was an Ardara-affiliated coauthor in The Journal of Physical Chemistry A (2026).