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

TL;DR

This paper extends a technique for generating ultrashort gamma-ray pulses by analyzing a set of multiple resonant absorbers, exploring spectral control via absorption and dispersion for improved pulse shaping.

Contribution

It introduces an analytical model for controlling gamma-radiation spectra using multiple absorbers, enhancing pulse generation techniques.

Findings

Analytical solutions for spectral control in multiple absorber systems

Demonstration of spectral amplitude and phase correction methods

Assessment of the ultimate capabilities of the pulse shaping technique

Abstract

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