Varying pre-plasma properties to boost terahertz wave generation in liquids

Terahertz Plasma Wave Electronics

Modern microelectronics and nanoelectronics devices rely on the drift of electron localized at the interfaces between different materials, such silicon and silicon dioxide or gallium arsenide and aluminum gallium arsenide. Hence, the electron drift transit time in the active region of a device determines the maximum device speed. Instead of the electron drift, we propose to use the waves of the...

Enhancement of terahertz wave generation from laser induced plasma

Plasma physics and related challenges of millimeter-wave-to-terahertz and high power microwave generation

Homeland security and military defense technology considerations have stimulated intense interest in mobile, high power sources of millimeter-wave mmw to terahertz THz regime electromagnetic radiation, from 0.1 to 10 THz. While vacuum electronic sources are a natural choice for high power, the challenges have yet to be completely met for applications including noninvasive sensing of concealed w...

Optimized terahertz-wave generation using BNA-DFG.

An effective and widely tunable means of producing terahertz (THz) radiation using difference-frequency generation (DFG) in an organic N-benzyl-2-methyl-4-nitroaniline (BNA) crystal was demonstrated by optimizing the pump wavelengths. We calculated the (wideband) refractive index and coherence length mapping of BNA to establish the optimum phase-matching condition of the DFG configuration. To s...

Terahertz wave generation by plasmonic-enhanced difference-frequency generation

Yuanxun Ge, Jianjun Cao, Zhenhua Shen, Yuanlin Zheng, Xianfeng Chen, and Wenjie Wan* Department of Physics, The State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China *Corresponding author: wenjie....