Efficient multi-cycle terahertz generation via difference frequency generation of a multiple-lines source

The 22nd International Conference on Ultrafast Phenomena 2020(2020)

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摘要
We demonstrated efficient multi-cycle terahertz generation centered at 0.5 THz with periodically poled lithium niobate crystals via difference frequency generation with a multiple-frequency-line source. At 130 mJ/cm2 pump fluence, the internal optical-to-THz conversion efficiency reaches 0.3%.
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关键词
difference frequency generation,multi-cycle,multiple-lines
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