Intense Single-cycle Terahertz Generation Driven By Ultrashort High-power Laser Pulses

Invited Keynote talk (INST10)

Wed, 11 Nov 2020 03:45pm to 04:15pm

Room: Olmstead

Attend in Zoom

We demonstrate the generation of intense terahertz (THz) pulse from laser-wire interaction. Laser pulse with 700mJ pulse energy and 32fs pulse duration is focused on a metal wire. Electrons emit from the wire and create a time-varying radial electric field which forms a miniaturized gyrotron-like undulator. Over 3 mJ single-cycle THz pulse is generated from the undulator. By using a tip at the end of the wire, the THz electric field is enhanced to 90GV/m. The high energy single-cycle THz pulse and the enhanced strong electric field provide a powerful tool for studying THz matter manipulation and THz nonlinear effects.

Presenters and Authors Info

Presenter: Anonymous

Authors: Zeng, Yushan; Song, Liwei; Tian, Ye

Shanghai Institute of Optics and Fine Mechanics