Spectral Rotation in Pulsed ESR Spectroscopy*
نویسندگان
چکیده
The technique of pulsed Fourier transform NMR spectroscopy is well developed and understood. The equivalent technique for ESR has been slower to be developed, but recent developments in ESR instrumentation have now made FT ESR possible. In this paper we consider the requirements for rotating the magnetization associated with an ESR spectrum by a microwave pulse. In addition, techniques for reconstructing the frequency (field)domain spectrum from the time-domain spectra are described. These techniques are applied to obtain a FT spectrum from the electron spin-echo decay of y-irradiated quartz and a Ff spectrum from the free induction decay of the 2,5di-t-butyl-pbenzosemiquinone radical recorded in 50 and 25 ms, respectively, of real time.
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