Improving sideband of chiral photonic crystal based on PSTD approach

Jin, Lei; Li, Junqing; Li, Hongming; Lin, Quanfen; Li, Chunfei

doi:10.1016/j.optcom.2007.06.042

Cited by 3 publications

(2 citation statements)

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“…Chiral optical materials combine the characteristics of chiral materials and photonic crystal materials and exhibit an adjustment effect on the propagation of polarized light . Common methods and materials for producing circularly polarized chiroptical activity include chiral photonic crystals reflecting circularly polarized light, asymmetric absorption of circularly polarized light by chiral molecules, chiral nanoparticles, chiral supramolecular structures, asymmetric plasmon resonance, and so forth. , Circularly polarized fluorescent material is caused by the asymmetry of left and right chirality when the fluorescent material is in the excited state .…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Luminescent Chiral Photonic Films Based on the Coassembly of Cellulose Nanocrystals and Gold Nanoclusters

et al. 2022

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In this work, we studied the formation and properties of composite films coassembled by cellulose nanocrystals (CNCs) and bovine serum albumin-stabilized gold nanoclusters (BSA-AuNCs). The influences of the BSA-AuNC concentration on the structure and optical properties of CNC-based composite films were further studied. It was found that the composite film retained the chiral nematic structure and optical activity. The self-assembled CNC and BSA-AuNC helical superstructures can produce strong, left-handed, circularly polarized luminescence with dissymmetry factors up to 0.287. Meanwhile, the third component, polyethylene glycol, was introduced without affecting the structural color and fluorescence characteristics of the composite film to enhance the flexibility of the film. The simplicity of the film preparation, the abundance of CNCs, and the flexibility and stability of the composite films pave the way for the production of functional materials with integrated functions.

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Section: Introductionmentioning

confidence: 99%

Circularly Polarized Luminescent Chiral Photonic Films Based on the Coassembly of Cellulose Nanocrystals and Gold Nanoclusters

et al. 2022

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“…It should be pointed out that in fact there are two kinds of chiral fibers (including chiral PCF): structurally chiral fiber [20][21][22][23][24] and dielectric-chiral fiber. [19,[25][26][27][28][29][30] In the structurally chiral fiber a helical or twisted structure, whose size is comparable to interested wavelength, is introduced into core or cladding; such a kind of chiral PCF can be used to design circular-polarization-related components, such as the polarization-selective filter [24] and the resonator of angular monumentum. [20] The dielectric-chiral fiber is based on the waveguide structure of an ordinary fiber, in which the constituting medium (such as silica) is partly or entirely replaced by chiral medium.…”

Section: Introductionmentioning

confidence: 99%

Polarization characteristics of chiral photonic crystal fibers with an elliptical hollow core

She¹,

Li²,

Cao³

2013

Chinese Phys. B

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The theoretical study of dielectric-chiral photonic crystal fiber (PCF) with an elliptical hollow core is presented. The band structure of chiral photonic crystal (PhC) is calculated by using a modified plane-wave expansion (PWE) method. By examining the out-of-plane photonic bandgaps (PBGs) of chiral PhC, a kind of chiral PCF with a hollow core is designed and their eigenstates are calculated. The distributions of mode field and polarization state are demonstrated, and how the structural asymmetry of the core together with the chirality in the background affects the modal polarization is discussed. The dependences of birefringence on chirality for different ellipticities of core are investigated.

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