Growth, THz properties, and Hirshfeld surface studies of 4-N,N-dimethylamino-4- N-methyl-stilbazolium 2,4,6-trimethylbenzenesulfonate single crystal

Wang, Tianhua; Xu, Kai; Wang, Guanjun; Wang, Qibo; Chen, Rui; Ma, Jun; Cao, Lifeng; Teng, Bing

doi:10.1007/s10854-021-07658-9

Cited by 4 publications

(1 citation statement)

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“…Based on the excellent properties of DAST, a series of derivatives of DAST have also been developed by introducing different counter anions [21][22][23][24][25][26]. To explore this kind of ionic-type organic nonlinear optical crystal for THz generators with improved properties, the following points are usually considered: (i) large macroscopic second-order optical nonlinearity; (ii) good phase matching between light waves and terahertz waves; (iii) reducing Crystals 2023, 13, 144 2 of 19 self-absorption in the THz region; and (iv) stable physical and chemical properties [27,28].…”

Section: Introductionmentioning

confidence: 99%

Organic Nonlinear Optical Crystals for Highly Efficient Terahertz-Wave Generation

Yang

Zhang

et al. 2023

Crystals

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Terahertz (THz) technology is an emerging field that is promising for future applications. Nonlinear optical (NLO) materials can effectively convert incident light into the THz frequency range using optics methods. Ionic-type organic π-conjugated NLO crystals containing electron donor-π-acceptor motifs have long attracted attention for their possibility to achieve large nonlinear optical coefficients. In this paper, an overview of the recent progress in ionic-type organic NLO crystals for highly efficient THz wave generation is presented. The substitution design strategies of cations and anions, for increasing optical nonlinearities and reducing absorptions in different structure series, are summarized. In addition, the progress in crystal growth and their THz output performance are also discussed.

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