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Related Experiment Video

Updated: Feb 27, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

Note: Laser-cut molybdenum grids for a retarding field energy analyzer.

K Landheer¹, A A Kobelev², A S Smirnov²

¹Utrecht University, Debye Institute for Nanomaterials Science Physics of Devices, High Tech Campus 21, 5656 AE Eindhoven, The Netherlands.

The Review of Scientific Instruments

|July 3, 2017

Summary

This study introduces a novel retarding field energy analyzer (RFEA) using laser-cut molybdenum grids. These grids offer high transmission for precise energy measurements in scientific instruments.

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Last Updated: Feb 27, 2026

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Published on: July 12, 2017

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Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

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Published on: June 28, 2018

Area of Science:

Physics
Materials Science
Analytical Chemistry

Background:

Retarding Field Energy Analyzers (RFEAs) are crucial for charged particle analysis.
Existing RFEA grid fabrication methods can be complex and costly.
Molybdenum is a suitable material for high-temperature and vacuum applications.

Purpose of the Study:

To present a new method for fabricating RFEA grids using laser-cutting technology.
To evaluate the performance of molybdenum grids in a 3-grid RFEA configuration.
To demonstrate the high transmission capabilities of the novel grid design.

Main Methods:

Laser-cutting a honeycomb mesh pattern into 50 μm thick molybdenum foil.
Fabricating flat grids with a 1 cm² area.
Testing the grids in a 3-grid RFEA with a 0.87 mm analyzer depth.

Main Results:

Successfully created RFEA grids with a honeycomb mesh structure from molybdenum.
Achieved high transmission grids with 20 μm wide walls and 150 μm wide meshes.
Demonstrated the feasibility of using these grids in a functional RFEA.

Conclusions:

Laser-cutting molybdenum foil is an effective method for producing high-transmission RFEA grids.
The developed grids are suitable for use in 3-grid RFEA systems.
This fabrication technique offers a promising approach for advancing RFEA technology.