Application of Mössbauer effect to study subnanometer harmonic displacements in a thin solid

Abstract

We measure subnanometer displacements of thin samples vibrated by piezotransducer. Samples contain ${}^{57}$Fe nuclei, which are exposed to 14.4 keV $\gamma$-radiation. Vibration produces sidebands from a single absorption line of the sample. The sideband intensities depend on the vibration amplitude and its distribution along the sample. We developed a model of this distribution, which adequately describes the spectra of powder and stainless steel (SS) absorbers. We propose to filter $\gamma$-radiation through a small hole in the mask, placed before the absorber. In this case only a small spot of the vibrated absorber is observed. We found for SS foil that nuclei, exposed to $\gamma$-radiation in this small spot, vibrate with almost the same amplitudes whose difference does not exceed a few picometers.

27 pages, 10 figures

References in corpus (3)

• Tunable sub-luminal propagation of narrowband x-ray pulses
• Transformation of a single photon field into bunches of pulses
• Application of the low finesse frequency comb for high resolution spectroscopy

Cited by in corpus (6)

• Ab initio quantum models for thin-film x-ray cavity QED
• Observation of acoustically induced transparency for gamma-ray photons
• Towards Flexible Intensity Control of Resonantly Scattered $\gamma$-Rays Using Multi-Frequency Vibrating Resonant Absorber
• Time-delayed coincidence technique for subnatural-width spectroscopy as an interference phenomenon
• X-ray-frequency modulation via periodic switching of an external magnetic field
• Powder vibration studied by Mössbauer spectroscopy