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Multiphoton Resonances in Pulse EPR
Authors
Gromov I.
Schweiger A.
Publication date
1 January 2000
Publisher
Abstract
Two- and three-photon electron spin echoes of a two-level system are observed using, in addition to the microwave excitation, a linearly polarized radio-frequency field oriented along the static magnetic field B0. Such multiphoton echoes are detected when the sum of the energies of one microwave and one or two radio-frequency photons are equal to the difference between energies of two spin states. The multiphoton character of the echoes is confirmed by measuring the spin nutation frequency as a function of the angle between the radio-frequency field and B0, and monitoring the echo amplitude as a function of the radiation field strengths. Floquet theory, usually applied for the description of multiphoton resonances with an odd number of photons, is extended to the case where an even number of photons participate in the transition. © 2000 Academic Press
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Kazan Federal University Digital Repository
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oai:dspace.kpfu.ru:net/102614
Last time updated on 07/05/2019
Kazan Federal University Digital Repository
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.kpfu.ru:net/135068
Last time updated on 07/05/2019