期刊
PHOTONICS
卷 9, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/photonics9100705
关键词
second-harmonic generation; lithium niobate; LiNbO3; multiple scattering; freezing; solidification; localization
类别
资金
- Russian Science Foundation [19-79-30086]
This paper demonstrates a significant increase in the efficiency of second-harmonic generation in a suspension of lithium niobate particles during freezing, and attributes it to the formation of close-packed structures. It also explores the application of this effect in other lithium niobate particle-based samples and proposes potential uses in phase transition sensing and particle organization process visualization in ice-templating.
This paper demonstrates a significant increase in the efficiency of second-harmonic generation in a suspension of lithium niobate (LiNbO3) particles during freezing at nano and picosecond pum pulse durations. The amplification is caused by the formation of close-packed structures during the solidification process. The energy dependences of the second-harmonic generation, the angular distributions of the scattering intensity, conversion coefficients and the scattering regime in a suspension and in other lithium niobate particle-based samples are studied. This effect can be used for phase transition sensing in a medium, visualization of the particle organization process in ice-templating, and significantly increasing the efficiency of other nonlinear effects in particle matter.
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