Circular Dichroism with High <i>Q</i> Factor of Symmetry-Broken Dimeric Hybrid Structure

Gongli Xiao; Sitong Zhou; Hongyan Yang; Zifan Lai; Jiayu Chen; Haiou Li; Xingpeng Liu; Zanhui Chen

doi:10.3788/AOS231104

Acta Optica Sinica, Volume. 43, Issue 22, 2224001(2023)

Circular Dichroism with High Q Factor of Symmetry-Broken Dimeric Hybrid Structure

Gongli Xiao¹, Sitong Zhou¹, Hongyan Yang^2、*, Zifan Lai¹, Jiayu Chen¹, Haiou Li¹, Xingpeng Liu¹, and Zanhui Chen¹

¹Key Laboratory of Microelectronic Devices and Integrated Circuits of Guangxi Colleges, Guilin University of Electronic Technology, Guilin 541004, Guangxi , China

²School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, Guangxi , China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. Dimer structure and CD responses of different combinations of structures. (a) Schematic diagram of dimer hybrid structure on metal substrate and its periodic unit; (b) comparative plots of CD responses of three different dimer structures

Download full size

Fig. 2. Absorption coefficient and electric field distribution in x-z plane of proposed symmetrically broken dimer hybrid structure. (a) Under RCP and LCP conditions, wavelength being (b) 721.1 nm; (c) 722.6 nm; (d) 726.5 nm

Download full size

Fig. 3. Influence of changing parameters a₁, a₂, b₁, and b₂on CD spectrum. (a) a₁; (b) a₂; (c) b₁; (d) b₂

Download full size

Fig. 4. Influence of changing parameters θand Gon CD spectrum. (a) θ; (b) G

Download full size

$Sensing properties of symmetry-broken dimeric hybrid structure. (a) Reflection spectra under different refractive indexes' conditions; (b) relationship between refractive index and resonance wavelength; (c) relationship between FWHM and Q under different refractive indexes' conditions$

Fig. 5. Sensing properties of symmetry-broken dimeric hybrid structure. (a) Reflection spectra under different refractive indexes' conditions; (b) relationship between refractive index and resonance wavelength; (c) relationship between FWHM and Q under different refractive indexes' conditions

Download full size

Fig. 6. Near-field digital imaging structural units. (a) Structural unit array diagram; (b) near-field response at RCP light incidence; (c) near-field response at LCP light incidence

Download full size

Table 1. Comparison of results for different structures
View table
Table 1. Comparison of results for different structures
Structure FWHM /nm
S /
（nm·RIU^-1）
Q /RIU^-1
Li′s work^［25］ 20 — 36.3
Ding′s work^［26］ 80 — 22.5
Zhou′s work^［14］ 101.82 7000 68.75
Chen′s work^［8］ 1 80.6 80.6
This work 0.16 718.3 4489.4

Tools

Get Citation

Copy Citation Text

Gongli Xiao, Sitong Zhou, Hongyan Yang, Zifan Lai, Jiayu Chen, Haiou Li, Xingpeng Liu, Zanhui Chen. Circular Dichroism with High Q Factor of Symmetry-Broken Dimeric Hybrid Structure[J]. Acta Optica Sinica, 2023, 43(22): 2224001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites