Addressing the grand-challenges that the world is facing nowadays in connection with ‘energy’, ‘information’ and ‘health’ requires the development of unconventional methods for unprecedented visualization of matter. SMARTelectron aims at developing an innovative technological platform for designing, realizing and operating all-optical rapidly-programmable phase masks for electrons. By introducing a new paradigm where properly synthesized ultrafast electromagnetic fields will be used for engineering the phase space of a free-electron wave function, we will be able to achieve unprecedented space/time/energy/momentum shaping of electron matter waves, surpassing conventional passive monolithic schemes and revolutionizing the way materials are investigated in electron microscopy.
Such unique high-speed, flexible and precise full-phase multidimensional control, will enable novel advanced imaging approaches in electron microscopy with enhanced features, such as higher image-resolution, lower electron dose, faster acquisition rate, higher signal-to-noise ratio, and three-dimensional image reconstruction, together with higher temporal resolution and high energy-momentum sensitivity. In SMART-electron, we will make such potential a reality by implementing for the first time three beyond-the-state-of-the-art imaging techniques enabled by our photonicbased electron modulators, namely: (1) Ramsey-type Holography, (2) Electron Single-Pixel Imaging, and (3) Quantum Cathodoluminescence. Such new approaches will lead to unprecedented visualization of many-body states in quantum materials, real-time electrochemical reactions, and spatio-temporal localization of biomimetic nanoparticles in cells for drug delivery. By surpassing the current paradigms in terms of electron manipulation, the project has the potential to drive electron microscopy into a new and exciting age where scientists will benefit from new tools with unprecedented performances that were unimaginable until now.
HOLOEYE is in charge of supporting the hardware and software integration of the SLM displays within the experimental setups at UNIMIB, EPFL and TECHNION. In particular, the SLM display need to be electronically synchronized with the laser and electron detector of the UTEM setup for specific temporal driving via the SLM’s driver PC. Moreover, SLM software features are being developed for specific integration within the adopted numerical environment and remote control from deep-learning algorithms.
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