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Generating Terahertz Waves from Water

October 4, 2017

Scientists have generated terahertz waves from solids, plasmas and even water vapor—but, until now, not from liquid water, which strongly absorbs radiation in that frequency range. Researchers at a U.S. university have finally figured out the right setup for generating broadband terahertz radiation from liquid water excited by femtosecond laser pulses (Appl. Phys. Lett., doi:10.1063/1.4990824). 

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