free-electron laser
noun
free-elec·tron laser
ˈfrē-i-ˈlek-ˌträn- 
: a laser that can be tuned over a wide range of frequencies and that produces electromagnetic radiation by the motion of electrons moving at relativistic velocities in a magnetic field
Examples of free-electron laser in a Sentence
Recent Examples on the Web
These pulses were generated using a free-electron laser, allowing researchers to observe events at incredibly small timescales.
—
Prabhat Ranjan Mishra, Interesting Engineering, 6 Apr. 2026
XLight XLight is a private company headquartered in Palo Alto, California that is developing free-electron lasers to manufacture semiconductors.
—Spencer Kimball, CNBC, 7 Feb. 2026
The company xLight, which counts former Intel CEO Pat Gelsinger as executive chair, seeks to develop free-electron lasers to improve one stage of chip production known as lithography, which uses light to print patterns onto silicon wafers.
—Julia Shapero, The Hill, 2 Dec. 2025
Over the past 15 years, scientists have built X-ray free-electron lasers, which instead of emitting beams of visible light emit X-rays.
—Thomas Linker, The Conversation, 15 Oct. 2025
Even before the first EUV machines had been installed in fabs, researchers saw possibilities for EUV lithography using a powerful light source called a free-electron laser (FEL), which is generated by a particle accelerator.
—IEEE Spectrum, 10 June 2024
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Prabhat Ranjan Mishra, Interesting Engineering, 6 Apr. 2026
XLight XLight is a private company headquartered in Palo Alto, California that is developing free-electron lasers to manufacture semiconductors.
—Spencer Kimball, CNBC, 7 Feb. 2026
The company xLight, which counts former Intel CEO Pat Gelsinger as executive chair, seeks to develop free-electron lasers to improve one stage of chip production known as lithography, which uses light to print patterns onto silicon wafers.
—Julia Shapero, The Hill, 2 Dec. 2025
Over the past 15 years, scientists have built X-ray free-electron lasers, which instead of emitting beams of visible light emit X-rays.
—Thomas Linker, The Conversation, 15 Oct. 2025
Even before the first EUV machines had been installed in fabs, researchers saw possibilities for EUV lithography using a powerful light source called a free-electron laser (FEL), which is generated by a particle accelerator.
—IEEE Spectrum, 10 June 2024
Cite this Entry
“Free-electron laser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/free-electron%20laser. Accessed 17 Apr. 2026.
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