INTERFEROMETRY IN ENERGY SPACE USING MOSSBAUER RADIATION

Mossbauer radiation from a single-line source was converted into a set of harmonics by transmission through an ultrasound-vibrated SS foil. Energy and time analysis of the radiation revealed characteristic side bands and quantum beats, respectively. When the radiation was further transmitted through a sample (a second SS foil) at rest, the original quantum beat pattern was shifted in time proportional to the sample th ickness. This time beat shift originates from interference in energy s pace. It is analogous to the spatial fringe shifts in classical interf erometry.