• English
    • français
  • Help
  •  | 
  • Contact
  •  | 
  • About
  •  | 
  • Login
  • HAL portal
  •  | 
  • Pages Pro
  • EN
  •  / 
  • FR
View Item 
  •   LillOA Home
  • Liste des unités
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
  • View Item
  •   LillOA Home
  • Liste des unités
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Phase-Sensitive Vector Terahertz Electrometry ...
  • BibTeX
  • CSV
  • Excel
  • RIS

Document type :
Article dans une revue scientifique
DOI :
10.3390/atoms8040070
Title :
Phase-Sensitive Vector Terahertz Electrometry from Precision Spectroscopy of Molecular Ions
Author(s) :
Constantin, Florin Lucian [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Journal title :
Atoms
Pages :
70
Publisher :
MDPI
Publication date :
2020
ISSN :
2218-2004
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
Physique [physics]/Physique Quantique [quant-ph]
English abstract : [en]
This article proposes a new method for sensing THz waves that can allow electric field measurements traceable to the International System of Units and to the fundamental physical constants by using the comparison between ...
Show more >
This article proposes a new method for sensing THz waves that can allow electric field measurements traceable to the International System of Units and to the fundamental physical constants by using the comparison between precision measurements with cold trapped HD+ ions and accurate predictions of molecular ion theory. The approach exploits the lightshifts induced on the two-photon rovibrational transition at 55.9 THz by a THz wave around 1.3 THz, which is off-resonantly coupled to the HD+ fundamental rotational transition. First, the direction and the magnitude of the static magnetic field applied to the ion trap is calibrated using Zeeman spectroscopy of HD+. Then, a set of lightshifts are converted into the amplitudes and the phases of the THz electric field components in an orthogonal laboratory frame by exploiting the sensitivity of the lightshifts to the intensity, the polarization and the detuning of the THz wave to the HD+ energy levels. The THz electric field measurement uncertainties are estimated for quantum projection noise-limited molecular ion frequency measurements with the current accuracy of molecular ion theory. The method has the potential to improve the sensitivity and accuracy of electric field metrology and may be extended to THz magnetic fields and to optical fields.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Collections :
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
Source :
Harvested from HAL
Files
Thumbnail
  • https://hal.archives-ouvertes.fr/hal-03335640/document
  • Open access
  • Access the document
Thumbnail
  • https://hal.archives-ouvertes.fr/hal-03335640/document
  • Open access
  • Access the document
Université de Lille

Mentions légales
Université de Lille © 2017