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

Absolute Equation-of-State Measurements

Absolute equation-of-state (EOS) measurements of porous, hydrocarbon-based foams have been carried out on the OMEGA EP Laser System. The experiment uses a target composed of a plastic ablator, a metal pusher, and a resorcinol formaldyhyde foam located inside a plastic tube. The target is driven by a high-energy laser pulse, driving a shock wave into the foam and compressing it. By measuring the pusher and shock velocities inside the foam, absolute EOS data can be obtained. A backlighter target using a metal foil is energized by a second set of laser beams, creating an x-ray source for imaging the foam dynamics. Essential to this measurement is the PJX imager (PJXI), which employs a high-speed x-ray streak camera (PJX) coupled with a monochromatic, slit x-ray imager nose cone. Research Engineer Chad Mileham is shown mounting the imaging nose cone to the PJX streak camera prior to the experiments.

Past Quick Shots

Around the Lab

An Enduring Partnership

Research scientists at the Laboratory for Laser Energetics and physicists, chemists, and computer scientists at the State University of New York (SUNY) at Geneseo have enjoyed a dynamic and enduring partnership for close to 20 years, culminating in the formation of the Nuclear and Plasma Diagnostics Development Laboratory on the Geneseo Campus. Staffed by six faculty members and more than a dozen undergraduate students, the Laboratory engages in research projects on a part-time basis throughout the academic year and full-time during the summer months.

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