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
Users' Guide

LLE Zoom Backgrounds

for virtual meetings are available here.

Quick Shot

Alt Text of the Image

Ken Anderson named Outstanding Reviewer for Journal of Physics Communications

Ken Anderson has been selected by the Journal of Physics Communications as an Outstanding Reviewer, in recognition of the high quality, quantity, and timeliness of his reviews. Peer review forms the backbone of scholarly communication, providing essential rigor and validation for published papers. IOP Publishing wishes to thank everyone who provides this valuable service, and especially recognize those who contribute exceptional reviews.

Past Quick Shots

Just Published

Dephasingless Laser Wakefield Acceleration

Dephasingless Laser Wakefield Acceleration by John Palastro et al. was published in Physical Review Letters and chosen as an Editor's Selection and a featured Physics article.

COVID-19 Updates

University of Rochester COVID-19 Updates

1 April 2020

Given that we are still in uncertain times in dealing with COVID-19 and the that the safety and health of our employees and their families is paramount, we will delay the restart of general laboratory activities including the Omega Facilities until at least April 15 and most likely beyond. I will continue to update all of you as the situation unfolds.

Be safe,

LLE Updates

LLE Staff Show Excellence in Their Community and at the Lab

Optical Manufacturing (OMAN) Technician, Desiree Morgan, has joined the effort to make masks for those in need. Desiree's passion besides working at LLE and her family is embroidery and sewing. In this time of shortages, she is working tirelessly to make masks and help stop the spread. Shown are a few of the over 300 masks that she has donated to the community. Below, Desiree is shown last month at her role at LLE inspecting a large mirror after the part was unloaded from the coating chamber shown in the background. OMAN's expertise is the manufacture of thin-film components for high-peak-power laser systems (Omega, NIF, CEA) and post-process inspections are an important part of our quality control procedures.

Around the Lab

Measuring the Crystal Structure of HED Materials: X-Ray Diffraction at the Omega Laser Facility

X-ray diffraction (XRD) is a quantitative tool for characterizing a material's atomic structure that exploits the periodicity of atomic arrangements to produce constructive interference of x rays at specific angles scattered from parallel planes of atoms in a sample. Atomic positions within the crystal determine the x-ray peak positions and intensities. The resulting diffraction pattern is the Fourier transform of the electron density distribution and offers critical details about structures, phases, textures, and other structural parameters, such as average grain size, crystallinity, strain, and crystal defects.