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Title: Enhancement of Relativistic Harmonic Generation by an Optically Preformed Periodic Plasma Waveguide

Abstract

Enhancement of relativistic third-harmonic generation by using an optically preformed periodic plasma waveguide was achieved. Resonant dependence of harmonic intensity on plasma density and density modulation parameters was observed, which is a distinct characteristic of quasi-phase-matching. The results demonstrate the potential of a modulated plasma waveguide in high-field applications.

Authors:
 [1];  [2];  [1];  [2]; ;  [1];  [3];  [1];  [2];  [2];  [1];  [2]
  1. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan (China)
  2. (China)
  3. Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan (China)
Publication Date:
OSTI Identifier:
20861618
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevLett.98.033901; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; HARMONIC GENERATION; MODULATION; PERIODICITY; PLASMA; PLASMA DENSITY; RELATIVISTIC RANGE; WAVEGUIDES

Citation Formats

Kuo, C.-C., Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei 106, Taiwan, Pai, C.-H., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Lin, M.-W., Lee, K.-H., Lin, J.-Y., Wang, J., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Central University, Jhong-Li 320, Taiwan, Chen, S.-Y., and Department of Physics, National Central University, Jhong-Li 320, Taiwan. Enhancement of Relativistic Harmonic Generation by an Optically Preformed Periodic Plasma Waveguide. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.033901.
Kuo, C.-C., Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei 106, Taiwan, Pai, C.-H., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Lin, M.-W., Lee, K.-H., Lin, J.-Y., Wang, J., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Central University, Jhong-Li 320, Taiwan, Chen, S.-Y., & Department of Physics, National Central University, Jhong-Li 320, Taiwan. Enhancement of Relativistic Harmonic Generation by an Optically Preformed Periodic Plasma Waveguide. United States. doi:10.1103/PHYSREVLETT.98.033901.
Kuo, C.-C., Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei 106, Taiwan, Pai, C.-H., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Lin, M.-W., Lee, K.-H., Lin, J.-Y., Wang, J., Department of Physics, National Taiwan University, Taipei 106, Taiwan, Department of Physics, National Central University, Jhong-Li 320, Taiwan, Chen, S.-Y., and Department of Physics, National Central University, Jhong-Li 320, Taiwan. Fri . "Enhancement of Relativistic Harmonic Generation by an Optically Preformed Periodic Plasma Waveguide". United States. doi:10.1103/PHYSREVLETT.98.033901.
@article{osti_20861618,
title = {Enhancement of Relativistic Harmonic Generation by an Optically Preformed Periodic Plasma Waveguide},
author = {Kuo, C.-C. and Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei 106, Taiwan and Pai, C.-H. and Department of Physics, National Taiwan University, Taipei 106, Taiwan and Lin, M.-W. and Lee, K.-H. and Lin, J.-Y. and Wang, J. and Department of Physics, National Taiwan University, Taipei 106, Taiwan and Department of Physics, National Central University, Jhong-Li 320, Taiwan and Chen, S.-Y. and Department of Physics, National Central University, Jhong-Li 320, Taiwan},
abstractNote = {Enhancement of relativistic third-harmonic generation by using an optically preformed periodic plasma waveguide was achieved. Resonant dependence of harmonic intensity on plasma density and density modulation parameters was observed, which is a distinct characteristic of quasi-phase-matching. The results demonstrate the potential of a modulated plasma waveguide in high-field applications.},
doi = {10.1103/PHYSREVLETT.98.033901},
journal = {Physical Review Letters},
number = 3,
volume = 98,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}
  • Dramatic enhancement of optical-field-ionization collisional-excitation x-ray lasing is achieved by using an optically preformed plasma waveguide. With a 9-mm-long pure krypton plasma waveguide prepared by using the axicon-ignitor-heater scheme, lasing at 32.8 nm is enhanced by 400 folds relative to the case without the plasma waveguide. An output level of 8x10{sup 10} photon/shot is reached at an energy conversion efficiency of 2x10{sup -6}. The same method is used to achieve x-ray lasing in a gas jet for the high-threshold low-gain transition at 46.9 nm in neonlike argon.
  • A systematic experimental study on injection of electrons in a gas-jet-based laser wakefield accelerator via ionization of dopant was conducted. The pump-pulse threshold energy for producing a quasi-monoenergetic electron beam was significantly reduced by doping the hydrogen gas jet with argon atoms, resulting in a much better spatial contrast of the electron beam. Furthermore, laser wakefield electron acceleration in an optically preformed plasma waveguide based on the axicon-ignitor-heater scheme was achieved. It was found that doping with argon atoms can also lower the pump-pulse threshold energy in this experimental configuration.
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