Extreme Light, Matter, and Fusion at LLNL

The Extreme Light, Matter, and Fusion (LMF) Directorate spearheads world-leading high-energy-density and fusion science; develops advanced laser, optical, target and diagnostic systems; and applies its capabilities to vital national security solutions.

LMF includes the National Ignition Facility, the Jupiter Laser Facility, the High Energy Density Science Center, and the Livermore Institute for Fusion Technology.

Extreme Light, Matter, and Fusion (LMF) Directorate Logo

Expanding the Fusion Frontier

Eleven Ignition Results, Unprecedented Fusion Yields

LLNL’s National Ignition Facility is the only lab on Earth to achieve fusion ignition.
Since making history in 2022, each repeat deepens our understanding of high energy density and fusion science.
Explore how NIF brings star power to Earth in service of U.S. national security.

NIF Milestones

FIRST IGNITION

December 2022

More fusion energy out than laser energy in

RECORD FUSION YIELD

April 2025

8.6 MJ of fusion energy, target gain >4

SECURING THE STOCKPILE

October 2025

Milestone survivability results for NNSA

UPGRADING THE LASER

March 2026

Embarking on the NIF Enhanced Yield Capability

Extreme Light, Matter, and Fusion News

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