Investigation of Third-Order Optical Nonlinearity in KBe2BO3F2 by Z-Scan
Document Type
Article
Publication Date
8-2012
Publication Title
Applied Physics B
DOI
10.1007/s00340-012-4985-x
Abstract
The third-order optical nonlinearity of deep-ultraviolet (DUV) nonlinear optical (NLO) crystal KBe2BO3F2 (KBBF) was investigated using single-beam Z-scan technique for the first time. The Z-scans were performed on a c-cut KBBF crystal and a KBBF prism-coupling device (PCD) with picosecond pulses at 355 nm. No two-photon absorption was observed in the experiment. The measured nonlinear refraction index n 2 showed positive signs, indicating self-focusing Kerr effects. The n 2 values were estimated to be (1.75±0.35)×10−15 cm2/W with the c-cut sample and (1.85±0.37)×10−15 cm2/W with the PCD, corresponding to the third-order nonlinear optical susceptibilitiesχ(3)effof (0.99±0.20)×10−13 esu and (0.94±0.19)×10−13 esu, respectively. The results are expected to promote the investigation of frequency conversion processes with ultra-short laser in KBBF crystal.
Recommended Citation
Li, Fang-Qin, Nan Zong, Feng-Feng Zhang, Jing Yang, Feng Yang, Qin-Jun Peng, Da-Fu Cui, Jing-Yuan Zhang, Xiao-Yang Wang, Chuang-Tian Chen, Zu-Yan Xu.
2012.
"Investigation of Third-Order Optical Nonlinearity in KBe2BO3F2 by Z-Scan."
Applied Physics B, 108 (2): 301-305: Springer.
doi: 10.1007/s00340-012-4985-x
https://digitalcommons.georgiasouthern.edu/physics-facpubs/87
