X-Ray Combs – Ultrafast Imaging of Quantum Materials


X-Ray Combs for Ultrafast Imaging of Quantum Materials


Quantum Design Concept

Ultraviolet-laser-driven high harmonic generation in multiply ionized plasma can be also highly efficient, representing a second practical route towards the X-ray region. Remarkably, this regime provides X-rays with contrasting spectral and temporal properties in comparison to mid-infrared-laser-driven harmonics.

– Narrowband X-ray peaks to >280 eV
– Attosecond pulse/s + low chirp
– Balance ion & plasma indices
– Higher single atom efficiency


Method for effectively phase-matched generation of coherent VUV, EUV and X-ray light using VUV-UV-VIS lasers
Tenio Popmintchev, Dimitar Popmintchev, Margaret M. Murnane, Henry C. Kapteyn, Patent: US 61873794 SEP 2013. Published MAR 2015.

Ultraviolet surprise: Efficient soft x-ray high-harmonic generation in multiply ionized plasmas
D. Popmintchev, C. Hernandez-Garcia, F. Dollar, C. Mancuso, J. A. Perez-Hernandez, M. C. Chen, A. Hankla, X. H. Gao, B. Shim, A. L. Gaeta, M. Tarazkar, D. A. Romanov, R. J. Levis, J. A. Gaffney, M. Foord, S. B. Libby, A. Jaron-Becker, A. Becker, L. Plaja, M. M. Murnane, H. C. Kapteyn, T. Popmintchev, Science 350, 1225-1231 (2015). http://dx.doi.org/10.1126/science.aac9755

Science Highlights: Short wavelengths birth shorter ones
Science News: Tenio Popmintchev fits X-ray laser on a tabletop