Laser manipulation of Moessbauer transitions as a novel method of gamma-ray spectroscopy
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Laser-Moessbauer spectroscopy provides a unique opportunity to measure the parameters which have never been measured before, such as quadruple and isomer shifts due to the contribution of a particular electron. The laser excitation of electrons enables the observation of a hyperfine structure in Moessbauer spectra in the case when it is absent both in traditional Moessbauer and in optical absorption spectra. Thus, there is a wide field of activity and potential applications for laser Moessbauer spectroscopy, starting from the very fundamental, such as the first direct measurement of nuclear radii, to the very practical, such as the characterization of optical materials heretofore resistant to Moessbauer probing.