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

X-Ray Thomson-Scattering Measurements

This target is used for x-ray Thomson-scattering measurements on OMEGA EP to measure the plasma properties of foam materials that are shocked by intense laser beams. The foam material and the parts of the container were manufactured by Schafer corporation located in Livermore CA, while the final assembly was performed by the LLE target fabrication department. The carbon-based foam (red) with a density of 350 mg/cm3 is encapsulated by a container (green) and by gold shields to protect it from preheat and to provide a definite and unperturbed measurement of the scattered x rays. The photograph shows the view from the drive beams. The surface of the red circular foam material shines through transparent layers of 50 µm of quartz and plastic. The x rays are generated on a nickel foil mounted on the top and propagate through a collimator to the foam material where they scatter by 90° to emerge through a small aperture behind the gold shield to the imaging x-ray Thomson spectrometer (IXTS). IXTS was developed by Los Alamos National Laboratory in collaboration with the University of Michigan.

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.