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

Laser's 50th Anniversary

SPIE interview with LLE Director
Dr. Robert L. McCrory

Road Construction Near LLE

Construction on I-390 and I-590 near the lab continues (shown in orange here). Updates available from the NYS Department of Transportation Road Construction Near LLE

Quick Shot

CryoNTD for High-Yield Cryogenic Experiments

The next-generation neutron temporal diagnostic (cryoNTD) will be used for high-yield cryogenic DT experiments beginning in February. The design of this instrument is based on the current neutron temporal diagnostic (NTD). The picture shows the installation of the cryoNTD nose cone assembly into the target chamber. The light from the scintillator inside the nose cone assembly is relayed approximately 16 m (52.5 ft) to a ROSS streak camera located in the OMEGA EP plenum area. The location in the plenum improves the neutron shielding of the camera by a factor of 100 relative to the current NTD. The resulting higher signal-to-background will reduce the error associated with determining the temporal width of the neutron production in the cryogenic implosions. The burn width is used to infer the pressure achieved in the DT fuel (peak pressures are approaching 50 billion atmospheres), a key performance metric in assessing the quality of an implosion.

Past Quick Shots

Around the Lab

The National Laser User's Facility (NLUF) turns 35!

The NLUF was born 35 years ago as a result of a workshop held at LLE to discuss the application of ultrahigh-power lasers in areas beyond fusion. The assembled panel of experts concluded that there are important applications of these systems: chemistry, biology, equation-of-state studies, effects on materials, and high-energy-density physics.