2013/04/20 by Wenjun Zhu, W. Zhu, J. P. Palastro +2 · 1 citation
Engineering · Physics and Astronomy · #Amplitude #Atomic physics #Bandwidth-limited pulse #Laser #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #Laser-induced spectroscopy and plasma #Optics #Physics #Plasma #Pulse (music) #Pulse duration #Ultrafast laser spectroscopy #Ultrashort pulse #physics.plasm-ph
paper · pdf · doi:10.1063/1.4813245
arxiv created 2013/04/20 · openalex publication_date 2013/07/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Spectral red-shifting of high power laser pulses propagating through underdense plasma can be a source of ultrashort mid-infrared (MIR) radiation. During propagation, a high power laser pulse drives large amplitude plasma waves, depleting the pulse energy. At the same time, the large amplitude plasma wave provides a dynamic dielectric response that leads to spectral shifting. The loss of laser pulse energy and the approximate conservation of laser pulse action imply that spectral red-shifts accompany the depletion. In this paper, we investigate, through simulation, the parametric dependence of MIR generation on pulse energy, initial pulse duration, and plasma density.