Room temperature noncritical phase matching fourth harmonic generation properties of ADP, DADP, and DKDP crystals
Room temperature noncritical phase matching fourth harmonic generation properties of ADP, DADP, and DKDP crystals
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ADP、DADP 和 DKDP 晶体的室温非临界相位匹配四次谐波生成特性
DOI：
10.1364/ome.7.004050
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发表时间：
2017-11-01
影响因子：
2.8
通讯作者：
Ji, Shaohua
中科院分区：
文献类型：
--
作者：
Gao, Han;Teng, Bing;Ji, Shaohua
在点籽晶快速生长方法生长的磷酸二氢铵(ADP)、35%二氢磷酸二氢钾(DADP)和62%二氢磷酸二氢钾(DKDP)晶体上，实现了室温下1053 nm激光的非临界位相匹配(NCPM)四倍频输出。ADP晶体的NCPM温度为33.7℃，dADP晶体为32.1℃，DKDP晶体为31℃。详细计算和比较了ADPdADP和DKDP晶体在NCPM倍频中的温度、角度调谐特性和性能。2ω到4ω的转换效率分别达到67%、63.45%和63.78%。通过提高晶体的温度控制和晶体质量，可以实现大口径、高效率的四倍频输出，为NCPM倍频晶体的选择提供了参考。
Noncritical phase-matching (NCPM) fourth harmonic generation (FHG) of a 1053 nm laser was realized at room temperature on an ammonium dihydrogen phosphate (ADP), 35% deuterated DADP and 62% deuterated potassium dihydrogen phosphate (DKDP) crystals grown by point-seed rapid growth method. The NCPM temperature is 33.7°C for ADP, 32.1°C for DADP, and 31°C for DKDP crystal. The temperature, angle tuning properties, and performance in NCPM FHG of ADP DADP and DKDP crystals are calculated and compared in detail. The 2ω-to-4ω conversion efficiency has been demonstrated up to 67% with ADP crystal, 63.45% with DADP crystal, and 63.78% with DKDP crystal. Large-aperture high-efficiency fourth harmonic generation would be realized by improving the temperature control and crystal quality with all these crystals and all these results could be a good reference in crystal chosen of NCPM FHG.