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e-Article

Spatially Asymmetric Hot-Carrier Transport for Ultrafast Generation of Electromagnetic Waves
Document Type
Conference
Source
2022 Conference on Lasers and Electro-Optics (CLEO) Lasers and Electro-Optics (CLEO), 2022 Conference on. :1-2 May, 2022
Subject
Photonics and Electrooptics
Semiconductor materials
Photonic band gap
Metals
Hot carriers
Media
Optical materials
Ultrafast optics
(190.0190) Nonlinear optics
(260.7120) Ultrafast phenomena
Language
Abstract
We demonstrate the ultrafast conversion of statically passive dielectrics (e.g., amorphous TiO 2 ) to transient second-order nonlinear media following the femtosecond transfer of hot electrons, enabling active control of nonlinear interactions, envisioned for terahertz functionalities.