Welcome to LLE

The Laboratory for Laser Energetics (LLE) of the University of Rochester is a unique national resource for research and education in science and technology. LLE was established in 1970 as a center for the investigation of the interaction of intense radiation with matter. The National Nuclear Security Administration funds LLE as part of its Stockpile Stewardship Program.

Target being shot by a laser
Office of the Director
LLE Virtual Tour

LLE Virtual Tour Coming Soon!

Tour the lab here.
LLE Seminar Calendar

Seminar Calendar

is available here.
Users' Guide

The Omega
Laser Facility Users' Guide

is now available for download here.

Quick Shot

OMEGA experiment

NY Times Article Features Experiment
at the Omega Laser Facility

On 5 February, the New York Times Science section posted an article that features an experiment that was conducted at the Omega Laser Facility under the LLE Laboratory Basic Science Program and was recently published in the journal Nature Physics. The paper discusses a new "strange" form of water that is simultaneously solid and liquid. The paper highlights experiments conducted by a team comprised of scientists from Lawrence Livermore National Laboratory (LLNL), the University of California Berkeley, and the University of Rochester and led by Marius Millot, a physicist at LLNL. This new form of water is called "superionic water" and is not known to exist naturally on Earth. Scientists created it by squeezing water between two pieces of diamond to create a type of ice that is about 60% denser than usual. Then, on the OMEGA Laser System, a pulse of laser light was used to heat the ice to thousands of degrees to exert a pressure more than a million times that of Earth's atmosphere. These conditions exist inside Uranus and Neptune and undoubtedly within numerous ice giants around other stars. A solicitation for proposals for the FY19 Laboratory Basic Science Program is currently underway.

Past Quick Shots

Around the Lab

Advancement of Hybrid Fluid-Kinetic Modeling Efforts for High-Energy-Density–Physics and Inertial Confinement Fusion Science

Adam Sefkow, Assistant Professor of Mechanical Engineering and Physics at the University of Rochester and senior scientist at the University's Laboratory for Laser Energetics (LLE), compares his research in high-energy-density physics (HEDP) and inertial confinement fusion (ICF) to that of a detective determined to solve an enigma. He builds on the achievements of other scientists; interprets data learned from experiments at LLE, Lawrence Livermore National Laboratory, and Sandia National Laboratories; and recognizes how often something significant can be learned from unexpected results. The recipient of both an Early Career Research Program award from the U.S. Department of Energy and the 2017 Excellence in Fusion Engineering Award from the Fusion Power Associates, Sefkow is currently developing a hybrid fluid-kinetic multiphysics simulation code named CHIMERA.