High-efficiency broadband second harmonic generation in single hexagonal GaAs nanowire

Jing Wang, Ying Yu*, Yu Ming Wei, Shun Fa Liu, Juntao Li, Zhang Kai Zhou, Zhi Chuan Niu, Si Yuan Yu, Xue Hua Wang

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

17 Citations (Scopus)
318 Downloads (Pure)


In this paper, we investigate second harmonic generation in a single hexagonal GaAs nanowire. An excellent frequency converter based on this nanowire excited using a femtosecond laser is demonstrated to operate over a range from 730 nm to 1960 nm, which is wider than previously reported ranges for nanowires in the literature. The converter always operates with a high conversion efficiency of ~10-5 W-1 which is ~103 times higher than that obtained from the surface of bulk GaAs. This nanoscale nolinear optical converter that simultaneously owns high efficiency and broad bandwidth may open a new way for application in imaging, bio-sensing and on-chip all-optical signal processing operations.

Original languageEnglish
Article number2166
JournalScientific Reports
Issue number1
Early online date9 May 2017
Publication statusPublished - 1 Dec 2017


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