Shaped pulses for transient compensation in quantum-limited electron spin resonance spectroscopy.
Arbitrary waveform generator
Electron paramagnetic resonance
Quantum limited amplifier
Shaped pulses
Superconducting resonators
Journal
Journal of magnetic resonance (San Diego, Calif. : 1997)
ISSN: 1096-0856
Titre abrégé: J Magn Reson
Pays: United States
ID NLM: 9707935
Informations de publication
Date de publication:
Jun 2019
Jun 2019
Historique:
received:
01
03
2019
revised:
08
04
2019
accepted:
09
04
2019
pubmed:
20
4
2019
medline:
20
4
2019
entrez:
20
4
2019
Statut:
ppublish
Résumé
In high sensitivity inductive electron spin resonance spectroscopy, superconducting microwave resonators with large quality factors are employed. While they enhance the sensitivity, they also distort considerably the shape of the applied rectangular microwave control pulses, which limits the degree of control over the spin ensemble. Here, we employ shaped microwave pulses compensating the signal distortion to drive the spins faster than the resonator bandwidth. This translates into a shorter echo, with enhanced signal-to-noise ratio. The shaped pulses are also useful to minimize the dead-time of our spectrometer, which allows to reduce the wait time between successive drive pulses.
Identifiants
pubmed: 31003062
pii: S1090-7807(19)30066-7
doi: 10.1016/j.jmr.2019.04.008
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
42-47Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.