3 papers
physics.optics2018
Terahertz emission from laser-driven gas-plasmas: a plasmonic point of view
I. Thiele, B. Zhou, A. Nguyen +8
We disclose an unanticipated link between plasmonics and nonlinear frequency down-conversion in laser-induced gas-plasmas. For two-color femtosecond pump pulses, a plasmonic resona…
physics.optics2017
Broadband terahertz emission from two-color fs-laser-induced microplasmas
Illia Thiele, Pedro Gonzalez de Alaiza Martinez, Rachel Nuter +3
We investigate terahertz emission from two-color fs-laser-induced microplasmas. Under strongest focusing conditions, microplasmas are shown to act as point-sources for broadband te…
physics.optics2016
Spectral dynamics of THz pulses generated by two-color laser filaments in air: The role of Kerr nonlinearities and pump wavelength
A. Nguyen, P. Gonzalez de Alaiza Martinez, J. Dechard +4
We theoretically and numerically study the influence of both instantaneous and Raman-delayed Kerr nonlinearities as well as a long-wavelength pump in the terahertz (THz) emissions…