A research team from the MPSD, DESY, CUI and Hamburg University has demonstrated the possibility of using a new knob to control and optimize the generation of high-order harmonics in bulk materials, one of the most important physical processes for generating high-energy photons and for the ultrafast manipulation of information.
The generation of high-order harmonics in gases is nowadays routinely used in many different areas of sciences, ranging from physics, to chemistry and biology. This strong-field phenomenon consists in converting many low-energy photons coming from a very strong laser, to fewer photons with a higher energy. Despite the growing interest in this phenomenon in solids, the mechanism behind the conversion of light is still under debate for solid materials.
Scientists from the CFEL in Hamburg used state-of-the-art theoretical simulation tools to advance the fundamental understanding of this phenomenon in solids. Their work is published in Nature Communications.
(Image© Nicolas Tancogne-Dejean + Joerg M. Harms, MPSD )