A new standard in high-field terahertz generation: the organic nonlinear optical crystal PNPA

Abstract

We report the full characterization of a new organic nonlinear optical (NLO) crystal for intense THz generation: PNPA ((E)-4-((4-nitrobenzylidene)amino)-N-phenylaniline). 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.

arXiv comment11 pages, 7 figures

References in corpus (6)

• Single-cycle THz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3
• Terahertz-Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO${}_3$
• Terahertz-Driven Phonon Upconversion in SrTiO3
• Two-dimensional terahertz magnetic resonance spectroscopy of collective spin waves
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Cited by in corpus (3)

• Towards Intense Ultra-Broadband High Repetition Rate Terahertz Sources Based on Organic Crystals [Invited]
• Emerging electro-optic molecular crystals for optoelectronic integration
• Chirped pulse control over the melting of superconductors