Highly efficient multicycle terahertz generation in PPLN
2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)（2021）
Abstract
We experimentally measure percent-level optical-to-multi-cycle terahertz conversion efficiencies by injecting a home-made wavelength- and duration-tunable two-line laser into periodically poled lithium niobate. We study the efficiency vs. the input laser peak fluence, pulse duration, crystal length and poling period at cryogenic temperature. Our work is a significant step towards high energy terahertz pulses for linear electron acceleration.
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Key words
highly efficient multicycle terahertz generation,PPLN,percent-level optical-to-multicycle terahertz conversion efficiencies,home-made wavelength,duration-tunable two-line laser,periodically poled lithium niobate,input laser peak fluence,pulse duration,poling period,high energy terahertz pulses
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