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Title: Remote generation of high-energy terahertz pulses from two-color femtosecond laser filamentation in air

Abstract

We experimentally investigated the dynamic behavior of remote terahertz (THz) generation from two-color femtosecond laser-induced filamentation in air. A record-high THz pulse energy of 570 nJ at frequency below 5.5 THz was measured by optimizing the pump parameters at a controllable remote distance of 16 m, while super-broadband THz (<300 THz) pulse energy was up to 2.8 {mu}J. A further energy-scaling possibility was proposed. By analyzing simultaneously the fluorescence from both neutral N{sub 2} and N{sub 2}{sup +} in the filament, we found that the enhancement of THz radiation was due principally to guiding of the weak second-harmonic pulse inside the filament of the first strong fundamental pulse.

Authors:
; ; ;  [1]; ; ; ;  [2];  [3]
  1. Centre d'Optique, Photonique et Laser (COPL) and Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, Quebec G1V 0A6 (Canada)
  2. Defence Research and Development Canada-Valcartier, 2459 Pie-XI Boulevard North, Quebec, Quebec G3J 1X5 (Canada)
  3. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062 (China)
Publication Date:
OSTI Identifier:
21546851
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.83.053801; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; COLOR; FILAMENTS; FLUORESCENCE; LASER RADIATION; MOLECULAR IONS; MOLECULES; NITROGEN; OPTICAL PUMPING; OPTIMIZATION; PULSES; SCALING; THZ RANGE; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; FLUIDS; FREQUENCY RANGE; GASES; IONS; LUMINESCENCE; NONMETALS; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHOTON EMISSION; PHYSICAL PROPERTIES; PUMPING; RADIATIONS

Citation Formats

Wang, T -J, Daigle, J -F, Yuan, S, Chin, S L, Theberge, F, Chateauneuf, M, Dubois, J, Roy, G, and Zeng, H. Remote generation of high-energy terahertz pulses from two-color femtosecond laser filamentation in air. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.053801.
Wang, T -J, Daigle, J -F, Yuan, S, Chin, S L, Theberge, F, Chateauneuf, M, Dubois, J, Roy, G, & Zeng, H. Remote generation of high-energy terahertz pulses from two-color femtosecond laser filamentation in air. United States. https://doi.org/10.1103/PHYSREVA.83.053801
Wang, T -J, Daigle, J -F, Yuan, S, Chin, S L, Theberge, F, Chateauneuf, M, Dubois, J, Roy, G, and Zeng, H. Sun . "Remote generation of high-energy terahertz pulses from two-color femtosecond laser filamentation in air". United States. https://doi.org/10.1103/PHYSREVA.83.053801.
@article{osti_21546851,
title = {Remote generation of high-energy terahertz pulses from two-color femtosecond laser filamentation in air},
author = {Wang, T -J and Daigle, J -F and Yuan, S and Chin, S L and Theberge, F and Chateauneuf, M and Dubois, J and Roy, G and Zeng, H},
abstractNote = {We experimentally investigated the dynamic behavior of remote terahertz (THz) generation from two-color femtosecond laser-induced filamentation in air. A record-high THz pulse energy of 570 nJ at frequency below 5.5 THz was measured by optimizing the pump parameters at a controllable remote distance of 16 m, while super-broadband THz (<300 THz) pulse energy was up to 2.8 {mu}J. A further energy-scaling possibility was proposed. By analyzing simultaneously the fluorescence from both neutral N{sub 2} and N{sub 2}{sup +} in the filament, we found that the enhancement of THz radiation was due principally to guiding of the weak second-harmonic pulse inside the filament of the first strong fundamental pulse.},
doi = {10.1103/PHYSREVA.83.053801},
url = {https://www.osti.gov/biblio/21546851}, journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 83,
place = {United States},
year = {2011},
month = {5}
}