Magnetic field induced rotation of the polarization plane of hydroxyl radical free induction decay in the terahertz region

E. N. Chesnokov, V. V. Kubarev, P. V. Koshlyakov

Research output: Contribution to journalArticlepeer-review

Abstract

Effect of the external longitudinal magnetic field on the optical free induction decay (FID) of the hydroxyl radical was investigated in detail. The experiments were performed on a rotational transition of OH (2Π3/2(J = 5/2) ← 2Π3/2(J = 3/2) at 83.8 cm-1) using the terahertz free electron laser. The rotation of the plane of polarization of FID as a function of time after the excitation of the radical was measured for various magnetic fields. The effect of nonmonotonic rotation of FID polarization plane in magnetic field was experimentally discovered. Numerical simulation of FID of the hydroxyl radical in a magnetic field has been carried out.

Original languageEnglish
Article number085205
JournalLaser Physics Letters
Volume18
Issue number8
DOIs
Publication statusPublished - Aug 2021

Keywords

  • free induction decay
  • hydroxyl radical
  • magnetic field
  • terahertz free electron laser

OECD FOS+WOS

  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY
  • 1.03.SY OPTICS

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