Simulation of an asymmetric hexagonal microcavity with high-ratio fluorescence and high-efficiency directional emission

Lu Ren; Zhihui Chen; Guang Feng; Xiaowei Wang; Yibiao Yang; Fei Sun; Yichao Liu

doi:10.1364/AO.458265

Applied Optics
Vol. 61,
Issue 15,
pp. 4571-4578
(2022)
•https://doi.org/10.1364/AO.458265

Simulation of an asymmetric hexagonal microcavity with high-ratio fluorescence and high-efficiency directional emission

Lu Ren, Zhihui Chen, Guang Feng, Xiaowei Wang, Yibiao Yang, Fei Sun, and Yichao Liu

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Lu Ren, Zhihui Chen, Guang Feng, Xiaowei Wang, Yibiao Yang, Fei Sun, and Yichao Liu, "Simulation of an asymmetric hexagonal microcavity with high-ratio fluorescence and high-efficiency directional emission," Appl. Opt. 61, 4571-4578 (2022)

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Table of Contents Category
- Optical Devices, Sensors, and Detectors
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About this Article
History
- Original Manuscript: March 14, 2022
- Revised Manuscript: May 3, 2022
- Manuscript Accepted: May 4, 2022
- Published: May 19, 2022

Abstract

Ratiometric fluorescent sensors are widely used in biological sensing and immunoassays due to their high sensitivity detection of analytes. The high-ratio value of fluorescence can increase the sensitivity of the fluorescence sensor; in addition, the directional emission can improve the efficiency of light collection and improve the effective use of radiation power. In previous studies, low fluorescence ratios and low directional emission efficiency have restricted the application of ratio fluorescence sensors. Based on the above constraints, this paper proposes an asymmetric hexagonal microcavity structure. By destroying the complete rotational symmetry of the hexagon structure, it achieves high fluorescence ratios and high-efficiency directional emission in the far-field range in the near-infrared wavelength range, which is of significance for the development of high sensitivity fluorescence sensors.

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Supplementary Material (1)

Name	Description
Supplement 1	Some results for two other asymmetric structures

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