期刊
ACS PHOTONICS
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.2c01336
关键词
terahertz generation; nonlinear optical crystal; high-field terahertz
类别
资金
- National Science Foundation
- Brigham Young University Simmons Research Endowment
- [DMR 2104317]
We report the full characterization of a new organic nonlinear optical crystal, PNPA, which enables intense THz generation surpassing the standard crystals DAST and OH-1. PNPA achieves a THz generation efficiency exceeding 4%.
We report the full characterization of a new organic nonlinear optical (NLO) crystal for intense THz generation: PNPA ((E)-4-((4-nitrobenzylidene)amino)-N-phenyl-aniline). We discuss crystal growth and structural characteristics. We present the wavelength dependence of THz generation, the thickness dependence of the THz spectrum for PNPA crystals and measure the efficiency. PNPA enables intense THz generation that surpasses NLO crystals DAST and OH-1, which have been the standard in organic high-field THz generators for several years. With our experimental conditions, PNPA can generate a peak-to-peak field strength of 2.9 MV/cm compared to 2.2 and 1.5 MV/cm from DAST and OH-1, respectively. This corresponds to a THz generation efficiency exceeding 4%.
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