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PULSE News:

High Speed Imaging Captures Effects of LCLS X-Rays on Liquid Droplets

23 MAY 2016: A LCLS experiment performed by a collaboration comprising the PULSE Institute, Max-Planck Institute for Medical Research, Princeton University, and Paul Scherrer Institute has revealed, for the first time, the effects of the intense LCLS X-rays on liquid droplets. The high-speed imaging employed in this experiment was designed by PULSE PI Claudiu Stan and showed that individual liquid droplets explode as the X-ray pulses contact them. In the case of liquid jets, a gap was punched in the jet stream where the X-rays intersect with the sample. As both modes represent common approaches to delivering samples for LCLS experiments, the ability to directly observe these explosions, together with the mathematical modeling built upon these data, could better inform experiments relying on these sample delivery approaches, particularly those to be done at high-repetition-rate XFEL sources coming online in the future (e.g. LCLS-II and European XFEL).

SLAC News has written an article featuring commentary from Dr. Stan and Dr. Sebastien Boutet (PULSE/LCLS), first and senior authors on the paper, as well as representative videos of the liquid explosions. The paper (C. Stan et al.) is published in Nature Physics.

PULSE Institute 10 Year Anniversary: Save the Date

To commemorate ten years of PULSE Institute research and operations, we will be holding a symposium on October 8, 2016 after the annual LCLS/SSRL Users' Meeting. Our roster of invited speakers will discuss achievements, recent progress, and future directions of ultrafast science.

For more information, please see the registration page. Additional details will be forthcoming.

Prof. Jelena Vuckovic Featured in SPIE Video

PULSE PI Jelena Vuckovic was recently featured in a video produced by SPIE, the international society for optics and photonics discussing the use of a computational approach for designing new nanophotonic structures. This approach makes exploration of the wide parameter space in the design process feasible, extending beyond previous approaches relying the use of certain assumptions to aid in the design of these structures. Interestingly, the algorithm has produced non-intuitive structures meeting required specifications that would likely not have arisen had a more traditional approach been used. Such results may have downstream applications for fields which make use of technology incorporating these structures, including computers and medical devices.

For more information:

Nanoscale and Quantum Photonics lab website, led by Prof. Vuckovic.

 

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