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Research group J. Evers – Division C. H. Keitel
Abstract:
The Mössbauer nuclei have proven as a good platform for X-ray quantum optics with their coherent resonant scattering and ultranarrow linewidth from recoiless scattering, and long lifetime. Despite the successes in the study of the Mössbauer nuclei and relevant quantum optics, the research has been restricted from the difficulties of generating multiple coherent pulses with short duration and high intensity. This thesis proposes a method for shaping the waveform of Mössbauer scattering into pulses in nanoseconds duration. Regarding their long lifetime, the study is expected to promote the study of the nuclear targets’ dynamics, specifically, nuclear pumpprobe measurement, etc. The motions of two nuclei by piezotransducers control the phases of coherent scattering fields and shape them into pulse-shape. The second study investigates the deviation in the measured motion. Narrowing down to the a part of the motion system, electronic response of the piezo transducer, its electronic property and limitations are studied and tested as response functions in the frequency domain with varying external voltage inputs and types of piezo transducers. With this measurements and future study in mechanical response, it is expected to allow improved controllability to the motion system on the nanosecond time scale and wavelength-order spatial scale.
