التفاصيل البيبلوغرافية
| العنوان: |
Induction of ice VII structure with secondary shock compression by backward Raman scattering in plasmas. |
| المؤلفون: |
Li, Fabing, Sun, Chenglin |
| المصدر: |
Journal of Applied Physics; 11/28/2023, Vol. 134 Issue 20, p1-5, 5p |
| مصطلحات موضوعية: |
RAMAN scattering, PHASE transitions, DEUTERIUM oxide, LASER plasmas, LASER pumping, ICE, RAMAN lasers, PULSED lasers |
| مستخلص: |
Forward stimulated Raman scattering and backward stimulated Raman scattering (BSRS) are measured when an intense 532 nm nanosecond pulsed laser is focused into water and heavy water. The investigation reveals a significant observation: the formation of the ice VII structure exclusively occurs in the backward direction when optical breakdown takes place, provided that the input energy falls below 90 mJ for liquid water or 75 mJ for heavy water. This phase transition is attributed to secondary shock compression, which comes from energy transfer and compression between the BSRS in plasmas with the pump laser. The optical breakdown experiment under pre-pressure reveals that the shock compression in the back direction is approximately 2.3 times that of the forward direction. This research is useful for shock compression and dynamics in plasmas. [ABSTRACT FROM AUTHOR] |
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