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Title: Influences of different gases on the terahertz radiation based on the application of two-color laser pulses

In this work, using a two-dimensional Particle In Cell-Monte Carlo Collision simulation method, a comparative study is performed on the influences of different types of atomic and molecular gases at various background gas pressures on the generation of broadband and intense Terahertz (THz) radiation via the application of two-color laser pulses. These two modes are focused into Argon (Ar), Xenon (Xe), Nitrogen (N{sub 2}), Oxygen (O{sub 2}), and air as the background gaseous media and the plasma channel is created. It is observed that the THz radiation emission dramatically changes due to the propagation effects. A wider THz pulse is emitted from the formed plasma channel at the higher gas pressures. The significant effects of the propagation features of the emitted THz pulse on its energy at the longer lengths of the plasma channel are observed.
Authors:
;  [1] ; ;  [2]
  1. Photonics Research Institute, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman (Iran, Islamic Republic of)
  2. Faculty of Physics Department, Shahid Bahonar University of Kerman, Kerman (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22486460
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ARGON; COLLISIONS; COLOR; COMPUTERIZED SIMULATION; LASER RADIATION; MONTE CARLO METHOD; NITROGEN; OXYGEN; PLASMA; PULSES; TWO-DIMENSIONAL CALCULATIONS; XENON