---
res:
  bibo_abstract:
  - "<jats:p>\r\n                    High-harmonic generation in solids enables probing
    of strong-field electron dynamics in condensed matter and the development of compact
    ultrafast light sources. Whereas most studies have focused on above-bandgap high-order
    harmonics, which are usually interpreted through short electron-hole trajectories
    that recombine within one optical cycle, the microscopic origin of low-order emission
    near the bandgap remains poorly understood. Here, we investigate near-bandgap
    harmonic generation in ZnO by combining semiconductor Bloch equations with a complex-time
    quantum-trajectory analysis. Our results indicate that these harmonics are not
    a continuation of the short trajectory. Rather, they originate from multiple-scattering
    trajectories, in which the electron-hole pair undergoes repeated Bragg scattering
    at the Brillouin-zone boundary and electron-hole reencounter near the\r\n                    <a:math
    xmlns:a=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <a:mi
    mathvariant=\"normal\">Γ</a:mi>\r\n                    </a:math>\r\n                    point
    before the actual recombination occurs. We identify that the imaginary part of
    the electron-hole displacement provides a practical diagnostic of the residual
    tunneling memory. Real-space electron-hole overlap alone does not imply coherent
    recombination unless the full complex displacement vanishes. These results clarify
    the microscopic picture of near-bandgap harmonic emission in ZnO and offer a framework
    for interpreting phase-resolved strong-field dynamics in solids.\r\n                  </jats:p>@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Xunqin
      foaf_name: Huo, Xunqin
      foaf_surname: Huo
  - foaf_Person:
      foaf_givenName: Xiwang
      foaf_name: Liu, Xiwang
      foaf_surname: Liu
  - foaf_Person:
      foaf_givenName: Shidong
      foaf_name: Yang, Shidong
      foaf_surname: Yang
  - foaf_Person:
      foaf_givenName: Xiaohong
      foaf_name: Song, Xiaohong
      foaf_surname: Song
  - foaf_Person:
      foaf_givenName: Torsten
      foaf_name: Meier, Torsten
      foaf_surname: Meier
      foaf_workInfoHomepage: http://www.librecat.org/personId=344
    orcid: 0000-0001-8864-2072
  - foaf_Person:
      foaf_givenName: Weifeng
      foaf_name: Yang, Weifeng
      foaf_surname: Yang
  bibo_doi: 10.1103/l939-jglf
  bibo_issue: '3'
  bibo_volume: 8
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2643-1564
  dct_language: eng
  dct_publisher: American Physical Society (APS)@
  dct_title: Near-bandgap harmonic generation in solids from multiple scattering revealed
    by complex quantum trajectories@
...