Conversion of recoilless gamma-radiation into a periodic sequence of ultrashort pulses in a set of dispersive and absorptive resonant media

摘要

An efficient technique to produce a periodic sequence of ultrashort pulses ofrecoilless gamma-radiation via its transmission through the optically thickvibrating resonant absorber was demonstrated recently [Nature, 508, 80 (2014)].In this work we extend the theoretical analysis to the case of a set ofmultiple absorbers. We consider an analytical model describing the control ofspectral content of a frequency modulated gamma-radiation by selectivecorrection of amplitudes and initial phases of some spectral components, using,respectively, the resonant absorption or dispersion of nuclei. On the basis ofthe analytical solutions we determine the ultimate possibilities of theproposed technique.