Observation of Acousto-Optic Diffraction of Terahertz Radiation in Liquefied Sulfur Hexafluoride at Room Temperature

Pavel Nikitin, Vitaly Voloshinov, Boris Knyazev, Michael Scheglov

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1 Citation (Scopus)

Abstract

Diffraction of terahertz radiation on ultrasound in liquefied sulfur hexafluoride at room temperature was observed for the first time. The dependences of the diffraction efficiency on the sound frequency, angle of incidence, and amplitude of radio-frequency electrical signal applied to a piezo-transducer were studied. Deflection of diffracted radiation by an angle of 10 was observed. It was found that the diffraction efficiency at room temperature is significantly (four times) higher than the one at 14°C known from the literature. The obtained and published data on the acousto-optic diffraction in liquefied sulfur hexafluoride contradict the well-known theory.

Original languageEnglish
Article number8879577
Pages (from-to)44-50
Number of pages7
JournalIEEE Transactions on Terahertz Science and Technology
Volume10
Issue number1
DOIs
Publication statusPublished - Jan 2020

Keywords

  • acousto-optics
  • diffraction
  • liquefied gas
  • terahertz radiation
  • Acousto-optics
  • terahertz (THz) radiation
  • BEAM
  • DEFLECTION

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