Looking at molecules from two sides with table-top femtosecond soft-X-rays

X-ray spectroscopy provides direct access into the nature of chemical bonds, from which the outcome of chemical reactions can be understood. Thus, researchers are exploring both X-ray source development and the implementation of new measurement methods. Researchers at the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) have now successfully combined a table-top laser-based extreme high-order harmonic source for short-pulse soft-X-ray absorption spectroscopy in the water window with novel flatjet technology. They are the first to demonstrate the simultaneous probing of carbon and nitrogen atoms in organic molecules in aqueous solution.