Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form
Institute of Micro/Nano Photonic Materials and Applications, School of Physics and Electronics, Henan University, Kaifeng 475004, China
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Nanomaterials 2020, 10(1), 34; https://doi.org/10.3390/nano10010034
Received: 27 November 2019
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Revised: 16 December 2019
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Accepted: 17 December 2019
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Published: 21 December 2019
It is significant to study the reason that semiconductor material has adjustable third-order optical nonlinearity through crystal form and dimensions are changed. αMnS nanoparticles with different crystal forms and sizes were successfully prepared by one-step hydrothermal synthesis method and their size-limited third-order nonlinear optical property was tested by Z-scan technique with 30 ps laser pulses at 532 nm wavelength. Nanoparticles of different crystal forms exhibited different NLO (nonlinear optical) responses. γMnS had stronger NLO response than αMnS because of higher fluorescence quantum yield. Two-photon absorption and the nonlinear refraction are enhanced as size of nanoparticlesreduced. The nanoparticles had maximum NLO susceptibility which was 3.09 × 10−12 esu. Susceptibility of αMnS increased about nine times than that of largest nanoparticles. However, it was reduced when size was further decreased. This trend was explained by the effects of light induced dipole moments. And defects in αMnS nanoparticles also had effect on this nonlinear process. MnS nanoparticles had potential application value in optical limiting and optical modulation.
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Keywords:
MnS; nanoparticles; Z-scan; nonlinear enhanced
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MDPI and ACS Style
Zhang, Z.; Li, P.; Gu, Y. Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form. Nanomaterials 2020, 10, 34. https://doi.org/10.3390/nano10010034
AMA Style
Zhang Z, Li P, Gu Y. Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form. Nanomaterials. 2020; 10(1):34. https://doi.org/10.3390/nano10010034
Chicago/Turabian StyleZhang, Zhihao, Pengchao Li, and Yuzong Gu. 2020. "Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form" Nanomaterials 10, no. 1: 34. https://doi.org/10.3390/nano10010034
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