Nonlinear optical induced lattice in atomic configurations

Nonlinear optical induced lattice in atomic configurations
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原子构型中的非线性光诱导晶格

DOI:
10.1038/s41598-020-67540-2
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发表时间:
2020-08
期刊:
影响因子:
4.6
通讯作者:
Wang Hongxing
Wang Hongxing
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hui Sijia;Wen Feng;Yu Xiaojun;Dai Zhiping;Ahmed Irfan;Su Yunpeng;Zhang Yanpeng;Wang Hongxing

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传统的人工晶格由于折射率不可调,限制了其在各种微介质成像中的灵活应用。本研究提出一种新的方法来量化晶格非线性光学诱导周期晶格,它具有一个显着的特点,可调的折射率,以进一步扩大现有的知识,光学成像设备。利用驻波的修饰效应,在原子中进行了自修饰和双修饰非线性四波混频(FWM)信号调制,并研究了FWM信号在原子表面的电磁诱导晶格(EIL)的空间振幅调制和综合(振幅和相位)调制。在远场衍射区的EIL证实了四波混频信号的衍射强度可以很容易地从零阶转换到高阶的基础上的色散效应。超快衍射能量变化的可调谐EIL有助于更好地理解非线性过程,并为发展二维非线性原子的高分辨率提供了进一步的发展。
Traditional artificial lattice with untunable refractive index have been restricted to flexible applied to kinds of micro medium imaging. This study proposes a novel approach to quantifying lattice using nonlinear optically induced periodic lattice, which possesses a striking feature of tunable refractive index, to further broaden current knowledge of optical imaging equipment. We conduct self-dressed and dual-dressed nonlinear four-wave mixing (FWM) signal modulation in the atoms by using the dressing effect of standing waves, and then investigate the space amplitude modulation and synthetization (amplitude and phase) modulation of the electromagnetic induced lattice (EIL) of FWM signal at the atom surface. The EIL presented in the far-field diffraction region confirms that diffraction intensity of the FWM signal can be easily transformed from zero-order to higher-order based on the dispersion effects. The tunable EIL with ultra-fast diffraction energy change can contribute to a better understanding of nonlinear process and provides a further step toward developing two-dimensional nonlinear atomic higher-resolution.
原子系综中高效且可调谐的光致蜂窝晶格
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发表时间: 2018-09-01
影响因子: 11
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