【摘 要】
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A theoretical model of cascaded terahertz (THz) difference-frequency generation is established based on one-dimensional coupled-wave equations. The relationships between sphalerite crystals’ wave vector mismatches and difference-frequency pump waves are a
【机 构】
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DepartmentofComputerScienceandTechnology,RenaiCollegeofTianjinUniversity,Tianjin301636,ChinaKeyLabor