The narrowband terahertz (THz) generation on lithium niobate (LN) crystals with nonperiodically poled domain structures was demonstrated. To realize THz pulse shaping, the optimal domain structures were designed by uing simulated annealing (SA) algorithm, for arbitrary preset frequency components and intensities of THz radiation generation. It was demonstrated that this method is feasible in THz pulse shaping.
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毋雪,朱巧芬,张岩.基于非周期极化铌酸锂晶体产生任意频率太赫兹辐射[J].红外与毫米波学报,2011,30(3):221~223]. WU Xue, ZHU Qiao-Fen, ZHANG Yan. Generation of arbitrary terahertz pulse in nonperiodically poled lithium niobate[J]. J. Infrared Millim. Waves,2011,30(3):221~223.]