Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets
Spatial self-phase modulation (SSPM) as a purely coherent non-linear optical effect (also known as Kerr effect) can support strong broadband phase modulation, which is essential for all-optical applications. Besides this, the increasing use of two-dimensional (2D) materials opens up new prospects in...
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Frontiers Media S.A.
2021-05-01
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2021.674820/full |
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| author | Si Xiao Yi-lin He Yu-lan Dong Yi-duo Wang Li Zhou Xue-jun Zhang Ying-wei Wang Jun He |
| author_facet | Si Xiao Yi-lin He Yu-lan Dong Yi-duo Wang Li Zhou Xue-jun Zhang Ying-wei Wang Jun He |
| author_sort | Si Xiao |
| collection | DOAJ |
| description | Spatial self-phase modulation (SSPM) as a purely coherent non-linear optical effect (also known as Kerr effect) can support strong broadband phase modulation, which is essential for all-optical applications. Besides this, the increasing use of two-dimensional (2D) materials opens up new prospects in this field of research. In this work, we report a broadband SSPM response from 2D transition metal carbonitrides (MXenes) and Nb2C, arising in the near-infrared (1,550 nm) range. Based on the SSPM measurements of few-layer Nb2C nanosheets, the third-order non-linear optical parameters of Nb2C, including the non-linear refractive index n2 and susceptibility χ(3), were determined at 400, 800, 1,300, and 1,550 nm. Moreover, the physics mechanism of the dynamic formation process of SSPM diffraction rings was exploited. The formation time of SSPM diffraction rings can be divided into two typical parts which correspond to the polarization and reorientation of 2D Nb2C nanosheets. As a proof of concept, we demonstrate the nonreciprocal light propagation at wavelengths of 1,300 and 1,550 nm by constructing an Nb2C/water hybrid structure. Our results reveal strong optical phase modulation of Nb2C in the infrared region, thus showing the great potential of MXene materials for use in passive photonic devices. |
| first_indexed | 2024-12-14T19:10:27Z |
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| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-14T19:10:27Z |
| publishDate | 2021-05-01 |
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| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-d3e2494f0dab465093b6d3840a50848e2022-12-21T22:50:44ZengFrontiers Media S.A.Frontiers in Physics2296-424X2021-05-01910.3389/fphy.2021.674820674820Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide NanosheetsSi Xiao0Yi-lin He1Yu-lan Dong2Yi-duo Wang3Li Zhou4Xue-jun Zhang5Ying-wei Wang6Jun He7Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaKey Laboratory of Hunan Province for Statistical Learning and Intelligent Computation, School of Mathematics and Statistics, Hunan University of Technology and Business, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, ChinaSpatial self-phase modulation (SSPM) as a purely coherent non-linear optical effect (also known as Kerr effect) can support strong broadband phase modulation, which is essential for all-optical applications. Besides this, the increasing use of two-dimensional (2D) materials opens up new prospects in this field of research. In this work, we report a broadband SSPM response from 2D transition metal carbonitrides (MXenes) and Nb2C, arising in the near-infrared (1,550 nm) range. Based on the SSPM measurements of few-layer Nb2C nanosheets, the third-order non-linear optical parameters of Nb2C, including the non-linear refractive index n2 and susceptibility χ(3), were determined at 400, 800, 1,300, and 1,550 nm. Moreover, the physics mechanism of the dynamic formation process of SSPM diffraction rings was exploited. The formation time of SSPM diffraction rings can be divided into two typical parts which correspond to the polarization and reorientation of 2D Nb2C nanosheets. As a proof of concept, we demonstrate the nonreciprocal light propagation at wavelengths of 1,300 and 1,550 nm by constructing an Nb2C/water hybrid structure. Our results reveal strong optical phase modulation of Nb2C in the infrared region, thus showing the great potential of MXene materials for use in passive photonic devices.https://www.frontiersin.org/articles/10.3389/fphy.2021.674820/fullspatial self-phase modulationniobium carbide (Nb2C)non-linear optics2D materialsinfrared rage |
| spellingShingle | Si Xiao Yi-lin He Yu-lan Dong Yi-duo Wang Li Zhou Xue-jun Zhang Ying-wei Wang Jun He Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets Frontiers in Physics spatial self-phase modulation niobium carbide (Nb2C) non-linear optics 2D materials infrared rage |
| title | Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets |
| title_full | Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets |
| title_fullStr | Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets |
| title_full_unstemmed | Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets |
| title_short | Near-Infrared Spatial Self-Phase Modulation in Ultrathin Niobium Carbide Nanosheets |
| title_sort | near infrared spatial self phase modulation in ultrathin niobium carbide nanosheets |
| topic | spatial self-phase modulation niobium carbide (Nb2C) non-linear optics 2D materials infrared rage |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2021.674820/full |
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