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Optical nonlinearity and laser modulation performance of FeNi-LDH in the mid-infrared region

Yangyang Liang, Yizhou Liu, Wenchao Qiao, Yuefeng Zhao, and Tao Li

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Abstract

In this Letter, we prepare FeNi–layered-double-hydroxide (LDH) nanoflakes and illustrate the corresponding microcosmic morphology. The optical response and laser modulation performance of the nanoflakes in the mid-infrared region were investigated for the first time, to the best of our knowledge. Employed as a saturable absorber in an ${\rm Er}{:}{\rm Lu}_2{\rm O}_3$ laser system, pulses with 256-ns duration were yielded at a repetition of 129 kHz under 7.8-W pump power, which corresponds to a pulse energy of 4.98 µJ.

© 2021 Optical Society of America

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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