期刊
OPTICS LETTERS
卷 42, 期 11, 页码 2118-2121出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.42.002118
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- H European Research Council (ERC) under the European Union Seventh Framework Programme (FP7) (FP7)/ERC Grant [609920]
- European Regional Development Fund (ERDF), project ELI-Extreme Light Infrastructure-phase 2 [CZ.02.1.01/0.0/0.0/15_008/0000162]
We generate narrowband terahertz (THz) radiation in periodically poled lithium niobate (PPLN) crystals using two chirped-and-delayed driver pulses from a high-energy Ti: sapphire laser. The generated frequency is determined by the phase-matching condition in the PPLN and influences the temporal delay of the two pulses for efficient terahertz generation. We achieve internal conversion efficiencies up to 0.13% as well as a record multicycle THz energy of 40 mu J at 0.544 THz in a cryogenically cooled PPLN. (C) 2017 Optical Society of America
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