3 papers
physics.optics2025
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…
physics.optics2023
Acoustic diagnostics of femtosecond laser filamentation
Binpeng Shang, Nan Zhang, Pengfei Qi +3
The promising application of femtosecond laser filamentation in atmospheric remote sensing brings imperative demand for diagnosing the spatiotemporal dynamics of filamentation. Aco…
physics.optics2023
Nanotips for 0.5THz scattering scanning near field microscopy
Zeliang Zhang, Pengfei Qi, Olga Kosavera +3
This manuscript demonstrates the theory, design, and simulation of scattering scanning near field microscopy (s-SNOM) in 0.5THz. A comprehensive simulation model of nanotips' geome…