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The Concept of FID‐detected Hole‐burning in Pulsed EPR Spectroscopy
Author(s) -
Wacker Thomas,
Sierra Gustavo A.,
Schweiger Arthur
Publication year - 1992
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.199200038
Subject(s) - chemistry , electron paramagnetic resonance , microwave , spectral hole burning , pulsed epr , analytical chemistry (journal) , spectroscopy , spectral line , spin (aerodynamics) , resolution (logic) , line (geometry) , nuclear magnetic resonance , atomic physics , spin echo , optics , chromatography , physics , medicine , laser , quantum mechanics , astronomy , artificial intelligence , computer science , magnetic resonance imaging , radiology , thermodynamics , geometry , mathematics
A new class of pulsed EPR experiments, based on FID‐detected hole‐burning, is introduced. A transient spectral hole burnt into an inhomogeneously broadened EPR line by means of a selective microwave pulse is shifted or broadened by different types of perturbations and is subsequently recorded in a single experiment via an FID following a nonselective microwave pulse. The proposed approach often exceeds corresponding electron spin‐echo experiments with respect to sensitivity and resolution. A number of applications of the FID‐detected hole‐burning technique are discussed and the predicted features of the new experiments are verified by model calculations and experiments.