4 papers
Detection of Ultra-Trace Heavy metals in Aerosols with pg^m3 Sensitivity Using Filament-Induced Fluorescence Spectroscopy
Yuezheng Wang, Lu Sun, Zhiwenqi An +5
Heavy metal pollution, particularly in the form of airborne aerosols such as lead (Pb), cadmium (Cd), mercury (Hg), and cobalt (Co), poses serious health and environmental risks, n…
Intense THz s-SNOM for nonlinearity engineering in nanoscale
Pengfei Qi, Zeliang zhang, Wenqi Qian +6
Terahertz (THz) nonlinear optics offer powerful tools to investigate and manipulate electronic dynamics in condensed matter. Confining high-peak-power THz pulses within near field…
Femtosecond Laser Filamentation in Atmospheric Turbulence
Jiewei Guo, Lu Sun, Yuezheng Wang +7
The effects of turbulence intensity and turbulence region on the distribution of femtosecond laser filaments are experimentally elaborated. Through the ultrasonic signals emitted b…
Filament based Ionizing Radiation Sensing Technology
Weiwei Liu, Jiewei Guo, Nan Zhang +7
Accidental exposure to overdose ionizing radiation will inevitably lead to severe biological damage, thus detecting and localizing radiation is essential. Traditional measurement t…