We will have two short-courses presented on Sunday, 8 October. Attendance for the courses is included as part of the registration.
Short course 1: Coherent combination of ultrafast pulses
Jens Limpert, Friedrich Schiller Universität Jena
In recent years intense laser pulses have found applications in various industrial and scientific areas. Significant progress has been made in scaling the energy of the pulses as well as the average power. However, different amplification schemes have been pushed to their specific limits, caused by detrimental nonlinear effects, by damage or by the occurrence of thermo-optical effects. New concepts have to be considered to address these issues and to enable new application fields. In that context, I will review the basics, achievements and newest developments of coherent combination of amplified femtosecond pulses, a concept which has already out-performed single aperture femtosecond laser systems and which allows for a scaling to unprecedented performance levels, i.e. the combination of highest peak power (Petawatt) and highest average power (Megawatt). In addition, scientific applications enabled by that technology such as particle acceleration and the generation of high-flux EUV light will be summarized.
Jens Limpert received his M.S in 1999 and Ph.D. in Physics from the Friedrich Schiller University of Jena in 2003. His research interests include high power fiber lasers in the pulsed and continuous-wave regime, in the near-infrared and visible spectral range. After an one-year postdoc position at the University of Bordeaux, France, where he extended his research interests to high intensity lasers and nonlinear optics, he returned to Jena and is currently leading the Laser Development Group (including fiber- and waveguide lasers) at the Institute of Applied Physics. He is author or co-author of more than 280 peer-reviewed journal papers in the field of laser physics. His research activities have been awarded with the WLT-Award in 2006, an ERC starting grant in 2009 and an ERC consolidator grant in 2013. Jens Limpert is founder of the Active Fiber Systems GmbH a spin-off from the University Jena and the Fraunhofer-IOF Jena.
Short course 2: High Harmonic Generation: a Quantum Technology for Capturing the Smallest and Fastest Dynamics in Materials
Margaret Murnane, University of Colorado
Ever since the invention of the laser over 55 years ago, scientists have been striving to create an x-ray version of the laser. Advances in extreme nonlinear optics now make it possible to efficiently upshift tabletop femtosecond lasers into the ultraviolet (EUV) and soft X-ray regions of the spectrum, with full control over the polarization state. This course will review recent advances in high harmonic (HHG) light sources, in particular how to tailor the HHG light source for applications in materials science. A host of applications in nanoscience and nanotechnology have now been demonstrated using EUV high harmonics, including full-field microscopes with sub-wavelength spatial resolution for the first time, quantifying how nanoscale energy flow differs from bulk, measuring how fast a material can change its electronic or magnetic state, probing how spin currents can control and enhance magnetization in ultra thin films, and visualizing the dynamic band structure of material and electron-electron interactions on sub-femtosecond timescales. (Science 348, 530 (2015); Science 353, 62 (2016); Science 353, 28 (2016); Nature Photonics 11, 259 (2017); PNAS 114, E5300 (2017))
Dr. Margaret Murnane is a Fellow at JILA and a member of the Department of Physics and Electrical and Computer Engineering at the University of Colorado. She received her B.S and M.S. degrees from University College Cork, Ireland, and her Ph.D. degree in physics from the University of California at Berkeley in 1989, and joined the faculty of physics at Washington State University in 1990. In 1996, Professor Murnane moved to the University of Michigan, and in 1999 she moved to the University of Colorado. She runs a joint research group and a small laser company with her husband, Prof. Henry Kapteyn. Prof. Murnane's research interests have been in ultrafast optical and x-ray science. Prof. Murnane is a Fellow of the American Physical Society and the Optical Society of America. In 1997 she was awarded the Maria Goeppert-Mayer Award of the American Physical Society, in 2000 she was named a John D. and Catherine T. MacArthur Fellow, in 2004 she was elected to the National Academy of Sciences, and in 2006 she was elected a Fellow of the American Academy of Arts and Sciences.