Wavelength Dependence Of High-energy Air-plasma THz Generation Under Optimal Conditions

Paper (INST10)

Wed, 11 Nov 2020 03:30pm to 03:45pm

Room: Olmstead

Attend in Zoom

Maximum 2-color air-plasma THz generation by each pump laser wavelength from an optical parametric amplifier (OPA) is experimentally investigated. While in general the maximum THz yield scales up rapidly as the pump wavelength increases; there are distinct local sweet spots in both the signal and idler wavelength range of the OPA, after which the maximum THz yield rolls off. With 1-mJ pump pulses at 1.82 µm, the generated THz pulse energy was measured to be 0.97 µJ; with the focused THz field strength as high as 8.5 MV/cm.

Presenters and Authors Info

Presenter: Anonymous

Authors: Zhou, Binbin; Shen, Qian; Jepsen, Peter Uhd

Department of Photonics Engineering, Technical University of Denmark, DTU Fotonik, Technical University of Denmark