HF-DR - radio frequency generators for ion traps

Our high frequency trapping field generators create large sinusoidal voltages with an unprecedented amplitude stability down to 12 ppm per minute.

Typically, such a state-of-the-art specification would only be achieved through complex in-house development by well-equipped research facilities. RF drives by Stahl-Electronics have evolved and proven up to the task in many demanding research projects with top research institutes worldwide.

Paul quadropole ion traps (e.g. Yb+, Ca+, Be+) and radio frequency quadrupoles (RFQ) benefit from both, the outstanding performance and the ease-of-use of our solution. Typical applications comprise general ion trapping experiments, quantum computing, and mass filters. For some models, a fast-turn-off option for swift ion ejection is available (’kill-switch’).

Unlike with common power RF generators, here, the outputs are capable to drive purely capacitive loads, like electrodes of ion traps or quadrupole structures.

The base model HF-DR is internally equipped with a resonator to achieve higher voltage amplitudes at a narrower frequency band. See variant model HF-DRB for a non-resonant broadband version.

Key Features
  • ultra precise amplitude, stable on 1×10-5 level, for outstanding ion coherence in ion clocks, quantum computing, etc.
  • USB remote control
  • Fast shut-off-option for ion ejection (<< 1 μs)
  • f = 1.0 to 6.5 MHz, up to 1800 Vpp differentially (optionally up to 40 MHz)

Model HF-DRB

The variant version HF-DRB features a non-resonant broadband design with fast-turn-on/off capability in order to, for example, capture ions in flight or supply miniaturised mass spectrometers.

Key Features
  • RF drive amplifier for ion traps/quadrupoles
  • up to 600 Vpp into 100 pF load
  • f = 10 kHz to approx. 1.5 MHz depending on customisation
  • non-resonant broadband design
typical RF drive application: supply of Paul traps or RF ion guides. The twin output doubles the effective voltage due to the 180° phase shift.
block diagram of the internal structure of HF-DR devices.
LCD display of HF-DR devices
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