New light for shaping electron beams

Science Daily  September 29, 2022 An international team of researchers (Austria, Germany) shaped a laser pulse with a spatial light modulator which interacted with a counter-propagating, synchronized pulsed electron beam in a modified scanning electron microscope. This enabled imprinting on demand transverse phase shifts to the electron wave, enabling unprecedented control over electron beams. They demonstrated the potential of this innovative technology by creating convex and concave electron lenses and by generating complex electron intensity distributions. According to the researchers their experiments paved the way for wavefront shaping in pulsed electron microscopes with thousands of programmable pixels. In contrast to […]