Five-fold plasmonic Fano resonances with giant bisignate circular dichroism

Tian, Ximin; Liu, Zhiguang; Lin, Han; Jia, Baohua; Li, Zhiyuan; Li, Jiafang

doi:10.1039/c8nr05277h

Cited by 21 publications

(13 citation statements)

References 62 publications

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“…Moreover, by folding up asymmetric vertical plate-shaped resonators along a planar air hole array, Tian et al built a 3D double-plate-based chiral metamaterial, as depicted in Fig. 8g, which simultaneously supported fivefold plasmonic Fano resonances and significant bisignate circular dichroism (CD) 84 . In addition, SRRs with different orientations and variable folding angles can enable excellent flexibility and controllability in the design of exotic 3D optical metamaterials.…”

Section: Optical Applicationsmentioning

confidence: 99%

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Kirigami/origami: unfolding the new regime of advanced 3D microfabrication/nanofabrication with “folding”

et al. 2020

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Advanced kirigami/origami provides an automated technique for modulating the mechanical, electrical, magnetic and optical properties of existing materials, with remarkable flexibility, diversity, functionality, generality, and reconfigurability. In this paper, we review the latest progress in kirigami/origami on the microscale/nanoscale as a new platform for advanced 3D microfabrication/nanofabrication. Various stimuli of kirigami/origami, including capillary forces, residual stress, mechanical stress, responsive forces, and focussed-ion-beam irradiation-induced stress, are introduced in the microscale/nanoscale region. These stimuli enable direct 2D-to-3D transformations through folding, bending, and twisting of microstructures/nanostructures, with which the occupied spatial volume can vary by several orders of magnitude compared to the 2D precursors. As an instant and direct method, ion-beam irradiation-based tree-type and close-loop nano-kirigami is highlighted in particular. The progress in microscale/nanoscale kirigami/ origami for reshaping the emerging 2D materials, as well as the potential for biological, optical and reconfigurable applications, is briefly discussed. With the unprecedented physical characteristics and applicable functionalities generated by kirigami/origami, a wide range of applications in the fields of optics, physics, biology, chemistry and engineering can be envisioned.

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Section: Optical Applicationsmentioning

confidence: 99%

“…d-f Fano resonances of surface plasmons in the mid-infrared region106 . g Giant bisignate circular dichroism of a fabricated DPMM84 . h, i Toroidal excitation in folded 3D metamaterials107 .…”

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confidence: 99%

Kirigami/origami: unfolding the new regime of advanced 3D microfabrication/nanofabrication with “folding”

et al. 2020

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“…In the context of plasmonic and all-dielectric artificial media, [246][247][248][249] judicious engineering of the interactions between coupled subwavelength photonic architectures has led to the emergence of chiral metamaterials with near-unity CD and extraordinary rotation of linearly polarized beams. [250,251] This indeed paved the way of developing ultracompact chiroptical instruments, including but not limited to chiral sensors, [252,253] metamirrors, [254] circularly polarized sources, [255] broadband circular polarizers, [256] circularly polarized light photodetectors, [257] and circularly polarized light emitting transistors. [258][259][260] In Figure 5, diagrammatic renderings and SEM images of different types of chiral metamaterials are demonstrated.…”

Section: Chiral Metasensorsmentioning

confidence: 99%

Photonic and Plasmonic Metasensors

Ahmadivand

Gerislioglu

2021

Laser & Photonics Reviews

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Biosensors have been designed and developed for detecting biomarkers, biomolecules, proteins, enzymes, organisms, and various types of bacterial and viral diseases since the turn of the century. Initially marred by poor sensitivity, specificity, and selectivity, the advent of the notion of photonic biosensors has successfully addressed such drawbacks. One of the hallmarks of modern pharmaceutical industries is the miniaturization of photonic platforms via continuous scaling down of their sizes, which was accomplished by leveraging the concept of artificial media. Numerous forms of photonic and plasmonic devices have been configured for next-generation technologies since the emergence of metamaterials. Among diverse applications, the development of cost-effective, label-free, selective, precise, and on-chip immunobiosensors with rapid sample-to-result feature has received copious interest, recently. This focused Review brings clarity to the rapidly growing body of available and in-development metamaterials-enabled diagnostic instruments based on inventive and promising approaches. Through centering on the operating principles of plasmonic, photonic, and hybrid metasensors, we mechanistically characterize and describe the properties of such tools and summarize the most recent achievements in devising metasensors and bioimaging tools with high precision. This insightful understanding serves as a comprehensive source for scientists, physicians, and students to construct ultradense and high-throughput clinical screening metadevices.

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“…The chiral structures can be broadly divided into two groups: a) those have well-defined handedness [15][16][17] and b) those do not have well-defined handedness. [18,19] For example, the widely adopted helical and gammadion geometries have left-handed (LH) or righthanded (RH) geometrical chirality for the single structure and its periodic array. Generally, their CD sign is hardly reversed without mirror inversion of the geometric chirality.…”

Section: Phase Enabled Circular Dichroism Reversal In Twisted Bi-chiral Propeller Metamolecule Arraysmentioning

confidence: 99%

Phase Enabled Circular Dichroism Reversal in Twisted Bi‐Chiral Propeller Metamolecule Arrays

Chen

et al. 2021

Advanced Optical Materials

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Artificial chiral structures play a crucial role in the realization of strong chiroptical responses and flexible light manipulation. Here, a unique bi‐chiral propeller metamolecule array is demonstrated in which the geometric chirality of the subunit with intracellular blades is opposite to that of the subunit with intercellular blades. Benefited from the special propeller twists, it is demonstrated that the propeller metamolecule arrays support the phase controlled chiral surface lattice resonances, whose amplitude can be tailored by tuning the coupling of chiral centers to change the interference phase. Specifically, the circular dichroism of the metamolecule array is readily reversed by rotating the propeller blades without changing the local geometry and the lattice parameters. The proposed bi‐chiral propeller metamolecule array and the exotic circular dichroism reversal are further demonstrated in experiments by adopting a nano‐kirigami fabrication method. This work provides a novel paradigm to investigate the profound chiroptical responses and manipulate the advanced spin states of light.

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Five-fold plasmonic Fano resonances with giant bisignate circular dichroism

Cited by 21 publications

References 62 publications

Kirigami/origami: unfolding the new regime of advanced 3D microfabrication/nanofabrication with “folding”

Kirigami/origami: unfolding the new regime of advanced 3D microfabrication/nanofabrication with “folding”

Photonic and Plasmonic Metasensors

Phase Enabled Circular Dichroism Reversal in Twisted Bi‐Chiral Propeller Metamolecule Arrays

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