Abstract
Terahertz (THz) emission from laser-induced air-plasma is presented. The
frequency spectra of THz wave are investigated using an
air-biased-coherent-detection method. The frequency spectra are measured under
different pump-pulse and probe-pulse energies. The frequency spectra become narrow
with the increasing pump power and we speculate it caused by collision behavior.
Meanwhile, the bandwidth of the frequency spectra is broadened by the increasing
probe power, which can be explained by pulse compression. Based on this finding, the
optimal frequency spectrum of THz can be achieved by regulating the probe and pump
beam.
© 2014 Chinese Optics Letters
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription