期刊
JOURNAL OF MATERIOMICS
卷 8, 期 2, 页码 511-517出版社
ELSEVIER
DOI: 10.1016/j.jmat.2021.06.007
关键词
Transition metal oxide; Nonlinear saturable absorption; Nonlinear susceptibility; Saturable absorber; Mode-locking
资金
- National Natural Science Foundation of China [12004213, 21872084]
- Young Scholar Program of Shandong University
This study investigates the nonlinear optical properties of cupric oxide (CuO) nanosheets using the Z-scan technique and successfully demonstrates the realization of a stable all-solid-state mode-locked laser using CuO nanosheets as saturable absorber for the first time. The results reveal the outstanding nonlinear optical absorption properties of CuO nanosheets, which have significant potential in the fields of ultrafast photonics and nonlinear optics.
As a representative transition metal oxide, cupric oxide (CuO) has attracted a lot of interest in miscellaneous fields. In the present work, the prominent third-order nonlinear optical (NLO) features of CuO nanosheets were demonstrated via the typical Z-scan technique at 1 mm. The open-aperture (OA) Z-scan measurements at different intensities clearly showed that CuO nanosheets possessed the saturable absorption (SA), reverse saturable absorption (RSA) and optical limiting behaviors. The closed-aperture (CA) Z-scan technology was implanted to investigate the nonlinear refractive index and the third-order nonlinear susceptibility. In virtue of the strong nonlinear optical absorption properties of CuO nanosheets, a stable all-solid-state mode-locked laser with the as-prepared CuO nanosheets as saturable absorber at 1.06 mm was realized for the first time. Our work confirmed that CuO nanosheets exhibited outstanding NLO properties, which might stimulate the development in ultrafast photonics and nonlinear optics. (C) 2021 The Chinese Ceramic Society. Production and hosting by Elsevier B.V.
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