Characterization of the Observed Electric Field and Molecular Relaxation Times for Millimeter-Wave Chirped Pulse Instrumentation.
Bloch equations
Chirped pulse
Coherent transients
Polarization
Rabi frequency
Relaxation time
Journal
Journal of infrared, millimeter and terahertz waves
ISSN: 1866-6892
Titre abrégé: J Infrared Millim Terahertz Waves
Pays: United States
ID NLM: 101581142
Informations de publication
Date de publication:
2020
2020
Historique:
received:
14
02
2020
accepted:
01
06
2020
pubmed:
25
8
2020
medline:
25
8
2020
entrez:
25
8
2020
Statut:
ppublish
Résumé
In a chirped pulse experiment, the strength of the signal level is proportional to the amplitude of the electric field, which is weaker in the millimeter-wave or submillimeter-wave region than in the microwave region. Experiments in the millimeter region thus require an optimization of the coupling between the source and the molecular system and a method to estimate the amplitude of the electric field as seen by the molecular system. We have developed an analytical model capable of reproducing the coherent transient signals obtained with a millimeter-wave chirped pulse setup operated in a monochromatic pulse mode. The fit of the model against the experimental data allowed access to the amplitude of the electric field and, as a byproduct, to the molecular relaxation times
Identifiants
pubmed: 32837589
doi: 10.1007/s10762-020-00716-z
pii: 716
pmc: PMC7327489
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1009-1021Informations de copyright
© Springer Science+Business Media, LLC, part of Springer Nature 2020.
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