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Abstract <p>The authors describe an experimental setup for obtaining fluorescence excitation spectra of molecules cooled in a supersonic jet of inert gas. The setup is used to record the fluorescence excitation spectra of substituted aldehyde molecules cooled in the supersonic jet. It is concluded that the spectra obtained using the setup have a better signal-to-noise ratio than those known from the literature. Further modifications to the setup are considered for recording the excitation spectra of sensitized phosphorescence and phosphorescence of low-volatile molecules of polyaromatic hydrocarbons.</p>

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Modifying a Setup for Investigating the Fluorescence and Phosphorescence Excitation Spectra of Polyaromatic Hydrocarbon Molecules Cooled in a Jet of Inert Gas

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • R. V. Terentyev,
  • D. V. Maslov,
  • N. N. Yakovlev,
  • A. V. Stolyarov,
  • I. A. Godunov

摘要

Abstract

The authors describe an experimental setup for obtaining fluorescence excitation spectra of molecules cooled in a supersonic jet of inert gas. The setup is used to record the fluorescence excitation spectra of substituted aldehyde molecules cooled in the supersonic jet. It is concluded that the spectra obtained using the setup have a better signal-to-noise ratio than those known from the literature. Further modifications to the setup are considered for recording the excitation spectra of sensitized phosphorescence and phosphorescence of low-volatile molecules of polyaromatic hydrocarbons.