材料科学
偏振器
光电子学
微尺度化学
手性(物理)
信号(编程语言)
圆二色性
纳米柱
光学
纳米技术
平面的
纳米结构
计算机科学
物理
双折射
对称性破坏
结晶学
手征对称破缺
程序设计语言
Nambu–Jona Lasinio模型
化学
数学教育
数学
计算机图形学(图像)
量子力学
作者
Juyong Gwak,Huu‐Quang Nguyen,Ki‐Jae Jeong,Young-Mi Kim,Se Jeong Park,Youngeun Choi,Mahendra Goddati,Lemma Teshome Tufa,Zhiyong Tang,Lemma Teshome Tufa
标识
DOI:10.1002/adom.202202104
摘要
Abstract Novel design of flexible chiral metasurface has been attractive to control electromagnetic dynamics for fabricating integrated enantiomeric sensing devices. In this article, a reconfigurable metasurface decorated with planar magnetoplasmonic microbundle arrays of Au@Fe 3 O 4 core‐shell nanowires (NWs) on polydimethylsiloxane film is fabricated. Its chiroptical property is willingly manipulated by skew angle (θ), that is, the angle between applied magnetic field vector ( B ) and tangent vector ( T ) of a curved metasurface. Interestingly, the as‐prepared NW metasurface presents many internal skew angles (θ in ) among respective NWs at nanoscale as well as additional external skew angle (θ ex ) among arrays at microscale, extraordinarily enhancing chiroptical signal compared to other nanosphere or single NW arrays where lack of θ in is observed. Computational simulation proves the disruption of the symmetry via distinct θ in and θ ex of the aligned microbundle array. In addition, the optical chirality induced by θ in could be analysed by magnetic circular dichroism (MCD). These results suggest a strategy to implement spectacle lenses with circular polarizer capabilities and the fabricated metafilm specifically modulates the absorption of circularly polarized light and can become a novel universal means to produce flexible devices for further signal enhancing at nanoantennas and biosensors.
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