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Ever since the invention of the laser over 50 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, to wavelengths as short as 8 Å.
This unique high harmonic (HHG) light source is ideally suited for host of applications in imaging and understanding how advanced materials function. A host of applications in nanoscience and nanotechnology have now been demonstrated using EUV HHG, including full-field microscopes with record 14nm spatial resolution, 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.
Margaret Murnane, Professor in Physics, ECE and Materials at the University of Colorado.
Joe d’Angelo, (Moderator), Executive Publisher.