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Terahertz Spatiotemporal Wave Synthesis in Random Systems.

Vittorio CecconiVivek KumarJacopo BertolottiLuke PetersAntonio CutronaLuana OlivieriAlessia PasquaziJuan Sebastian Totero GongoraMarco Peccianti
Published in: ACS photonics (2024)
Complex media have emerged as a powerful and robust framework to control light-matter interactions designed for task-specific optical functionalities. Studies on wavefront shaping through disordered systems have demonstrated optical wave manipulation capabilities beyond conventional optics, including aberration-free and subwavelength focusing. However, achieving arbitrary and simultaneous control over the spatial and temporal features of light remains challenging. In particular, no practical solution exists for field-level arbitrary spatiotemporal control of wave packets. A new paradigm shift has emerged in the terahertz frequency domain, offering methods for absolute time-domain measurements of the scattered electric field, enabling direct field-based wave synthesis. In this work, we report the experimental demonstration of field-level control of single-cycle terahertz pulses on arbitrary spatial points through complex disordered media.
Keyphrases
  • high resolution