Ayuda
Ir al contenido

Dialnet


Linking high harmonics from gases and solids.

  • Autores: G. Vampa, T. J. Hammond, N. Thire, B. E. Schmidt, F. Legare, C. R. McDonald, T. Brabec, P. B. Corkum
  • Localización: Nature: International weekly journal of science, ISSN 0028-0836, Vol. 522, Nº 7557, 2015, págs. 462-464
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • When intense light interacts with an atomic gas, recollision between an ionizing electron and its parent ion 1 creates high-order harmonics of the fundamental laser frequency 2. This sub-cycle effect generates coherent soft X-rays 3 and attosecond pulses 4, and provides a means to image molecular orbitals 5. Recently, high harmonics have been generated from bulk crystals 6,7, but what mechanism 8,9,10,11,12 dominates the emission remains uncertain. To resolve this issue, we adapt measurement methods from gas-phase research 13,14 to solid zinc oxide driven by mid-infrared laser fields of 0.25 volts per angstrom. We find that when we alter the generation process with a second-harmonic beam, the modified harmonic spectrum bears the signature of a generalized recollision between an electron and its associated hole 11. In addition, we find that solid-state high harmonics are perturbed by fields so weak that they are present in conventional electronic circuits, thus opening a route to integrate electronics with attosecond and high-harmonic technology. Future experiments will permit the band structure of a solid 15 to be tomographically reconstructed.


Fundación Dialnet

Dialnet Plus

  • Más información sobre Dialnet Plus

Opciones de compartir

Opciones de entorno