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Updated: May 9, 2026

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
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Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

Note: external multipass optical trap for counterpropagating pulsed laser applications.

J S Graul1, A D Ketsdever, G P Andersen

  • 1ERC Inc., Edwards AFB, California 93524, USA.

The Review of Scientific Instruments
|August 2, 2013
PubMed
Summary

A novel optical ring trap was developed to confine laser pulses for over 50 round trips. This technology enables advanced laser applications, including spectroscopy and novel gas heating methods.

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Area of Science:

  • Physics
  • Optics
  • Laser Technology

Background:

  • Pulsed lasers are crucial for various scientific applications.
  • Confining light pulses enhances their interaction with matter.
  • Developing stable optical cavities is essential for advanced laser experiments.

Purpose of the Study:

  • To demonstrate a stable optical ring trap for pulsed lasers.
  • To investigate the potential of this trap for new scientific applications.
  • To achieve long pulse confinement times within the optical trap.

Main Methods:

  • Utilizing a frequency-doubled, pulsed Nd:YAG laser (12 mJ, 5 ns FWHM).
  • Splitting laser pulses and injecting them into opposing sides of a 2.44 m optical ring trap.
  • Employing a Pockels cell to "lock" counterpropagating pulses for extended durations (≥50 round trips).

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Main Results:

  • Successfully confined counterpropagating laser pulses within the optical ring trap for over 50 round trips.
  • Demonstrated the stability and effectiveness of the Pockels cell locking mechanism.
  • Validated the optical trap's capability to maintain pulse integrity over extended periods.

Conclusions:

  • The developed optical ring trap provides a robust platform for high-intensity light-matter interaction studies.
  • This technology has significant potential for established applications like laser-based absorption spectroscopy and X-ray production.
  • Opens new avenues for research in non-resonant optical lattice gas heating and time-resolved coherent Rayleigh-Brillouin scattering.