GaInSn liquid nanospheres as a saturable absorber for Q-switched pulse generation at 639 nm
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2022-07-18
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en
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8
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Optics Express, Volume 30, issue 15, pp. 28242-28249
Abstract
Liquid metals, which possess the superiority of low cost, shape-reconfigurability, and excellent optoelectronic properties, have been applied in various fields, such as flexible electronics, superconductivity, and coolants. In this paper, high-quality GaInSn liquid nanospheres synthesized by the ultrasonic method are applied for nonlinear optics and laser switches. The saturation absorption property derived from localized surface plasmon resonance at 639 nm is studied based on the open-aperture Z-scan technique, exhibiting a modulation depth of ∼35.5% and a saturation fluence of ∼21.75 mJ/cm2, respectively. The as-prepared GaInSn liquid nanospheres are also successfully utilized as a saturable absorber to achieve a stable Q-switched Pr:YLF laser at 639 nm. The output pulse width can reach ∼280 ns with a pulse repetition rate of ∼174.8 kHz. Our results suggest that GaInSn liquid nanospheres are a candidate material for generating visible laser pulses, which is of great interest for potential applications in visible nonlinear optics.Description
Funding Information: Funding. National Key Research and Development Program of China (2019YFA0705000); National Natural Science Foundation of China (62175133); Natural Science Foundation of Shandong Province (ZR2020MF115); Shandong University of Science and Technology (2019TDJH103, skr21-3-049). Publisher Copyright: © 2022 Optica Publishing Group.
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Chen, B, Wang, P, Zhang, N, Li, K, Zhang, K, Liu, S, Xu, J & Sun, Z 2022, ' GaInSn liquid nanospheres as a saturable absorber for Q-switched pulse generation at 639 nm ', Optics Express, vol. 30, no. 15, pp. 28242-28249 . https://doi.org/10.1364/OE.467944