France Shocks the World with Apollon: A Gigantic Laser Outstrips a Million Nuclear Power Plants and Puts American Supremacy to Shame
An intense new phase in the race for extreme light technologies is unfolding. A recent breakthrough from the United States has reignited interest in petawatt-class lasers, while France’s Apollon system remains unmatched in power.
A Laser with the Energy of One Million Nuclear Reactors
Earlier this month, scientists at the SLAC National Accelerator Laboratory in California revealed they had successfully created a 1-petawatt laser beam, using a unique approach that compresses particles to unimaginable speeds.
The Popular Mechanics coverage of the event was blunt: the laser’s burst of energy is equal to that of one million nuclear power plants operating simultaneously. While this power level was achieved only for a fraction of a second, the implications for science and technology are enormous.
The key lies in a novel method dubbed the “flipper” technique. Electrons are pushed to near-light velocities through an accelerator, then grouped and compressed with extreme precision using a sequence of radio-frequency pulses and magnetic fields.
After compression, these electrons pass through an undulator magnet, interacting with an external laser to further boost their energy. The outcome is a brief but extraordinarily intense laser pulse, capable of replicating physical conditions only found in deep space or during the universe’s earliest moments.
This intensity is so extreme that researchers believe the system could be used to investigate the quantum vacuum — a theoretical state of “empty” space that teems with energy fluctuations and virtual particles. The laser could, in theory, generate enough force to rip particles out of the vacuum itself.
Apollon Still Holds the Global Power Record
As American researchers celebrated their petawatt-class success, eyes turned back to France, where the Apollon laser continues to operate at an unrivaled 10 petawatts. Situated near Paris, Apollon produces ultrashort pulses of laser light focused into one of the highest energy concentrations ever recorded.
With support from leading European laboratories and industrial partners like Thales, Apollon enables investigations into high-energy physics, gamma-ray bursts, particle acceleration, and the inner mechanics of high-density plasmas.
Unlike the recent SLAC experiment, which marks a notable advancement but is not yet designed for sustained output, Apollon is already operational and part of a wider scientific ecosystem.
Researchers use it to recreate extreme astrophysical environments, and to explore fundamental forces under tightly controlled experimental conditions. While Apollon’s duration is similarly brief — measured in femtoseconds — its peak intensity is unmatched.
Global Competition in Light-Speed Science
The push for ultra-intense lasers is no longer limited to academic curiosity. With installations like Apollon, SLAC’s new beam, and Romania’s ELI-NP facility, the competition is intensifying. These lasers can contribute not only to physics but also to defense systems, next-generation computing, and advanced manufacturing techniques.
The geopolitical subtext is hard to ignore. Control over petawatt laser technology is increasingly seen as a form of scientific sovereignty. Nations that master these tools can probe the very nature of matter, simulate nuclear events without testing real weapons, and open doors to undiscovered phenomena in quantum field theory and cosmology.
France, with Apollon, has carved out a unique leadership role — not only outperforming rivals in power output but doing so within a collaborative European framework.
Toward the Megaampere Era
SLAC’s team isn’t stopping at one petawatt. Their long-term objective is to develop electron beams delivering 1 megaampere — an output that would allow for entirely new regimes of matter manipulation and light-matter interaction. This would bring researchers even closer to understanding how energy behaves under gravitational forces comparable to those found in black holes.
Such systems are extremely challenging to build and operate. They demand innovations in energy storage, thermal management, and radiation control, while also raising ethical and safety questions. Ensuring that these tools are used responsibly — and for peaceful, constructive research — will require international cooperation and transparent oversight.
For now, however, France continues to shine at the top. With Apollon firing at ten times the power of the newest American challenger, the spotlight is firmly on European innovation in the world of ultra-high-energy photonics.