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<p>The possibility of frequency-resolved imaging using terahertz emission from laser filament plasma is demonstrated in the range from 1 to 10&#xa0;THz. By leveraging axisymmetric terahertz emission from a DC-biased filament, the spatial and spectral properties of a multi-component object are characterized. Therefore, laser filament terahertz emission can be applied for spectroscopic imaging of objects.</p>

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Frequency resolved imaging by laser filament THz emission

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • Leonid Seleznev,
  • Georgy Rizaev

摘要

The possibility of frequency-resolved imaging using terahertz emission from laser filament plasma is demonstrated in the range from 1 to 10 THz. By leveraging axisymmetric terahertz emission from a DC-biased filament, the spatial and spectral properties of a multi-component object are characterized. Therefore, laser filament terahertz emission can be applied for spectroscopic imaging of objects.