Abstract

A method has been proposed to reconstruct at arbitrary time the spectral–temporal characteristics of a14.4-keV single-photon wave packet that is emitted by a 57Co source and is resonantly absorbed in themedium of 57Fe nuclei. The method is based on the frequency separation of the field emitted by the sourceand resonance nuclear polarization induced by this field by means of delayed acoustically induced transparencyof the absorber, which appears after the activation of oscillations of the absorber at the correspondingfrequency and amplitude. The proposed method has been compared to the known quantum-optical memorymethods and methods of nuclear polarization control in the gamma range. Experimental conditions havebeen proposed to implement the method. It has been shown that this method allows the implementation ofthe time-resolved Mössbauer spectroscopy of various media.

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