Experimental observation of vibrations produced by pulsed laser beam in MgO:57Fe |
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| Authors: | Farit Vagizov Roman Kolesov Silviu Olariu Yuri Rostovtsev Olga Kocharovskaya |
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| Affiliation: | (1) Physics Department, Texas A&M University, College Station, TX 77840, USA;(2) Kazan State University, Kazan, 420008, Russia;(3) Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, 603600, Russia;(4) National Institute of Physics and Nuclear Engineering, 077125, Magurele, Bucharest, Romania |
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| Abstract: | We report the first observation of a laser-produced vibration with the aid of Mössbauer techniques. Thin platelets of MgO single crystals were doped by diffusion of 57Fe atoms. The illumination of the MgO:57Fe sample with a pulsed Nd:YAG laser produced a significant broadening of the Mössbauer spectrum. In order to find out what caused these changes, we performed a series of time-domain experiments, in which the Mössbauer spectra were collected only during a 2.5 μs gate interval. This gate interval was swept from 5 μs to 190 μs over the time interval between the two laser pulses. After laser irradiation, the position of the Mössbauer line was found to be changing in time as a decaying oscillations of well-defined frequency, which can be due to the vibration of the sample induced by the laser pulse. |
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| Keywords: | MgO:57Fe M?ssbauer spectroscopy pulsed laser beam |
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