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

Next-Generation Cryo Target

The next-generation cryo target will employ a new mounting stalk that is specifically designed to be insensitive to vibrational energy once aligned to the 60 beams of the OMEGA laser. Referred to as the "Type 1E target mount," the new stalk was designed by Mechanical Engineering's Brian Rice and uses a 17-µm-diam silicon carbide fiber to attach the cryogenic capsule to a polyimide tube that helps damp vibrations. The alignment-stability requirement is ~1% of the capsule diameter. These targets are filled with several hundred atmospheres of deuterium–tritium fuel and cooled to 19.6 K, or -424°F. Mathematical models, based on mechanical properties measured at 19.6 K, were used to select the target assembly materials and dimensions needed to ensure the stability requirement. Once irradiated by the 60 OMEGA beams, these capsules implode and produce fusion neutron yields of nearly 5 × 1013.

Past Quick Shots

Around the Lab

Robert L. McCrory Appointed University Professor and Riccardo Betti Named Robert L. McCrory Professor

At an installation ceremony on 3 April, Dr. Robert L. McCrory, University Vice President and Vice Provost, and CEO and Director of the Laboratory for Laser Energetics, was appointed University Professor. Professor Riccardo Betti, professor of mechanical engineering and of physics and astronomy at the University of Rochester, was named the inaugural Robert L. McCrory Professor.