Chinese Optics Letters, 2015, 13 (4): 041601, Published Online: Sep. 21, 2018  

Phase matching characteristics of deuterated ammonium dihydrogen phosphate crystals Download: 1069次

Author Affiliations
1 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
2 Key Laboratory of Functional Crystal Materials and Device, Shandong University, Ministry of Education, Jinan 250100, China
3 Chengdu Fine Optical Engineering Research Center, Chengdu 610041, China
Abstract
Refractive indices for crystals ammonium dihydrogen phosphate (ADP), 30% deuterated ADP (DADP), 50% DADP, and 70% DADP are measured from 253 to 1529 nm with 5×10 6 accuracy. Numerical fits to modified double-pole Sellmeier equation are made. Second-harmonic generation, third-harmonic generation phase matching (PM) angles, and noncritical PM (NCPM) wavelengths are calculated using the Sellmeier parameters. The deuterated crystals show smaller PM angles than pure crystal. Fourth-harmonic generation process can be realized by DADP in smaller deuterium content than deuterated potassium dihydrogen phosphate (DKDP). The measured NCPM wavelengths are consistent with the calculated value. PM characteristics are compared between DADP and DKDP.

Lili Zhu, Baoan Liu, Lisong Zhang, Qinghua Zhang, Zhengping Wang, Xun Sun. Phase matching characteristics of deuterated ammonium dihydrogen phosphate crystals[J]. Chinese Optics Letters, 2015, 13(4): 041601.

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