Ultrafast control of terahertz harmonic generation by optically modulating carrier dynamics in nonlinear metasurfacesZhehao Ye, Yongzheng Wen, Chen Wang, Yong Tan, Renfei Zhang, Fuli Zhang, Yuancheng Fan and Ji ZhouNatl Sci Open, 5 1 (2026) 20250065DOI: https://doi.org/10.1360/nso/20250065