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Related Experiment Video

Updated: Jun 18, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

Dielectric barrier discharge source for supersonic beams.

K Luria¹, N Lavie, U Even

¹Sackler School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel.

The Review of Scientific Instruments

|November 10, 2009

Summary

A novel dielectric barrier discharge excitation source creates cold, metastable, and dissociated atomic beams, along with positive and negative ions, from pulsed supersonic sources efficiently.

Area of Science:

Atomic and Molecular Physics
Plasma Physics
Physical Chemistry

Background:

Pulsed supersonic beams are crucial for studying molecular dynamics and reaction mechanisms.
Generating cold, reactive species like metastable atoms and ions is challenging.
Existing excitation methods often lack efficiency or versatility.

Purpose of the Study:

To introduce a new, reliable excitation source for pulsed supersonic beams.
To demonstrate the production of various species, including metastable atoms and ions.
To evaluate the efficiency and reliability of the proposed excitation method.

Main Methods:

Utilizing dielectric barrier discharge (DBD) within a pulsed supersonic beam.
Characterizing the species produced using spectroscopic and mass spectrometry techniques.

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Last Updated: Jun 18, 2026

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Optimizing DBD parameters for efficient species generation.

Main Results:

Successfully generated cold beams of metastable atoms.
Produced dissociated neutral atoms from molecular precursors.
Achieved high-efficiency generation of both positive and negative ions.
Demonstrated reliable performance of the DBD excitation source.

Conclusions:

The DBD excitation source offers a versatile and efficient method for producing diverse species in pulsed supersonic beams.
This technology enables new possibilities for research in atomic and molecular physics, and chemical dynamics.
The reliability and efficiency make it suitable for various experimental applications.