Near-field nonlinear imaging of an anapole mode beyond diffraction limit

Cui Tong; Zhang Mingqian; Zhao Yun; Yang Yuanmu; Bai Benfeng; Sun Hong-Bo

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Near-field nonlinear imaging of an anapole mode beyond diffraction limit

机译：近场非线性成像超出衍射极限的矛盾模式

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Nonlinear nanophotonics, as an emerging field in nanophotonics, eagerly calls for experimental techniques for probing and analyzing near-field nonlinear optical signals with subwavelength resolution. Here, we report an aperture-type scanning near-field optical microscopic method for probing near-field nonlinear optical processes. As a demonstration, near-field third-harmonic generation from an anapole dark-mode state generated by a silicon nanodisk is probed and imaged. The measured results agree well with the simulations, with a spatial resolution down to 0.14 lambda(0) and a sensitivity of 0.1 nW. This method provides a powerful tool for characterizing nonlinear light-matter interactions at the nanoscale, which can help, for example, to unveil crystal properties involving subwavelength defects or dislocations. (C) 2021 Optical Society of America

机译：非线性纳米光子学作为纳米光子学的一个新兴领域，迫切需要实验技术来探测和分析亚波长分辨率的近场非线性光学信号。本文报道了一种用于探测近场非线性光学过程的孔径扫描近场光学显微镜方法。作为演示，我们探测并成像了由硅纳米盘产生的暗模态产生的近场三次谐波。测量结果与模拟结果吻合良好，空间分辨率降至0.14λ（0），灵敏度为0.1 nW。该方法为在纳米尺度上表征非线性光-物质相互作用提供了一个强有力的工具，例如，它可以帮助揭示涉及亚波长缺陷或位错的晶体性质。（2021）美国光学学会

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来源
《Optics Letters》 |2021年第9期|共4页
作者
Cui Tong; Zhang Mingqian; Zhao Yun; Yang Yuanmu; Bai Benfeng; Sun Hong-Bo;
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作者单位

Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

Instru Beijing 100084 Peoples R China;

China Acad Space Technol Qian Xuesen Lab Space Technol Beijing 100094 Peoples R China;

Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

Instru Beijing 100084 Peoples R China;

Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

Instru Beijing 100084 Peoples R China;

Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

Instru Beijing 100084 Peoples R China;

Tsinghua Univ Dept Precis Instrument State Key Lab Precis Measurement Technol &

Instru Beijing 100084 Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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1. Local magneto-optical Kerr effect imaging by scanning near-field optical microscope in reflection-mode [J] . 蔡微, 商广义, 姚骏恩中国光学快报：英文版 . 2010,第003期
2. Failure analysis of integrated circuits beyond the diffraction limit: contact mode near-field scanning optical microscopy with integrated resistance, capacitance, and UV confocal imaging [J] . Lewis A., Shambrot E. Proceedings of the IEEE . 2000,第9期

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3. Formation of Optical Fields of Stimulated Raman Scattering with a Resolution beyond the Abbe Diffraction Limit by Spherical Microlens Cavities with Whispering Gallery Modes: Near-Field Approximation [J] . M. V. Jouravlev Optics and Spectroscopy . 2012,第4期

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4. Near-Field Coupling and Mode Competition in Multiple Anapole Systems [J] . Valerio Mazzone, Juan Sebastian Totero Gongora, Andrea Fratalocchi Applied Sciences . 2017,第6期

机译：多偶极子系统中的近场耦合和模式竞争
5. Near-field nanolasers based on nonradiating anapole modes [C] . Juan Sebastian Totero Gongora, Andrey E. Miroshnichenko, Yuri S. Kivshar, Conference on Lasers and Electro-Optics . 2016

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6. Closing the gap to the diffraction limit: Near wavelength limited tabletop soft x-ray coherent diffractive imaging [D] . Sandberg, Richard Lunt 2009

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7. Breaking the acoustic diffraction limit via nonlinear effect and thermal confinement for potential deep-tissue high-resolution imaging [O] . Baohong Yuan, Yanbo Pei, Jayanth Kandukuri -1

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8. Efficient third harmonic generation and nonlinear subwavelength imaging at a higher-order anapole mode in a single germanium nanodisk. [O] . Grinblat, G, Li, Y, Nielsen, MP, 2016

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9. Near-Field Imaging of Atom Diffraction Gratings: The Atomic Talbot Effect [R] . Chapman, M. S., Ekstrom, C. R., Hammond, T. D., 1995

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Near-field nonlinear imaging of an anapole mode beyond diffraction limit

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