image: Countering-rotating circularly polarized two-color driving fields are employed to generate circularly polarized EUV fields with complex temporal and polarization structures through high-harmonic generation processes. This material relates to a paper that appeared in the Feb. 19, 2016, issue of Science, published by AAAS. The paper, by C. Chen at University of Colorado, Boulder in Boulder, CO, and colleagues was titled, 'Tomographic reconstruction of circularly polarized high-harmonic fields: 3-D attosecond metrology.' view more
Credit: Created by Stevern Burrows, JILA