【摘要】 报道了利用引上提拉法生长出非线性光学晶体铌酸钾锂,并用其实现了对准连续可调谐钛宝石激光倍频.在波长为890—952nm范围内,通过室温下非临界相位匹配,得到445—476nm的二次谐波.抽运光强为144—269mW,二次谐波强度为058—173mW,倍频效率可达065%.更多还原

【Abstract】 The tetragonal tungsten bronze type potassium lithium niobate single crystals grown by the resistance heating Czochralski technique are reported. Frequency doubling of a quasi\|continuous tunable Ti∶sapphire laser is realized in the crystal. Tunable second harmonic generation within the range of 445—476?nm by noncritical phase matching at room temperature is obtained. The incident power is 144—269?mW and the power of the second harmonic generation is 0 58—1 73?mW. The conversion efficiency is about 0 65 percent.更多还原