Phonons,defects and optical damage in crystalline acetanilide |
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| Affiliation: | 1. Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi''an 710021, China;2. State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi''an Modern Chemistry Research Institute, Xi''an 710065, China;3. School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi''an 710119, China |
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| Abstract: | Intense picosecond pulses cause accumulated optical damage in acetanilide crystals at low temperature. Catastrophic damage to the irradiated volume occurs after an incubation period where defects accumulate. The optical damage is monitored with subanosecond time resolution. The generation of defects is studied with damage-detected picosecond spectroscopy. The accumulation of defects is studied by time-resolved coherent Raman scattering, which is used to measure optical phonon scattering from the accumulating defects. |
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