State Key Laboratory of Crystal Materials, Shandong University, Jinan, China.
Opt Lett. 2013 May 15;38(10):1679-81. doi: 10.1364/OL.38.001679.
High-efficiency frequency conversion into the deep ultraviolet in a partially deuterated ammonium dihydrogen phosphate (ADP) crystal is reported. For a 60% deuterated ADP crystal, the spontaneous Raman scattering intensity decreased by 38% compared with that of a pristine ADP crystal. At room temperature (24°C), noncritical phase-matching fourth harmonic generation of a 1053 nm laser was realized. The angular acceptance was 55.7 mrad, and the external conversion efficiency from 526 to 263 nm reached 85.3%.
报道了在部分氘化磷酸二氢铵（ADP）晶体中高效的深紫外频率转换。对于 60%氘化 ADP 晶体，与原始 ADP 晶体相比，自发拉曼散射强度降低了 38%。在室温（24°C）下，实现了 1053nm 激光的非临界相位匹配四倍频。角接收范围为 55.7mrad，从 526nm 到 263nm 的外部转换效率达到 85.3%。
