In:
Advanced Optical Materials, Wiley, Vol. 11, No. 4 ( 2023-02)
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.
Type of Medium:
Online Resource
ISSN:
2195-1071
,
2195-1071
DOI:
10.1002/adom.202202104
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2708158-8
