High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing
We present a simple and robust structure to realize Fano resonance for refractive index sensing applications. The Fano resonance with ultrahigh Q factors (Q > 5.0 × 10<sup>4</sup>) and high reflections (near 100%) is realized in a 2-D defect-free pillar array photonic c...
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7593278/ |
| _version_ | 1818458023591411712 |
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| author | Daquan Yang Changhong Li Chuan Wang Yuefeng Ji Qimin Quan |
| author_facet | Daquan Yang Changhong Li Chuan Wang Yuefeng Ji Qimin Quan |
| author_sort | Daquan Yang |
| collection | DOAJ |
| description | We present a simple and robust structure to realize Fano resonance for refractive index sensing applications. The Fano resonance with ultrahigh Q factors (Q > 5.0 × 10<sup>4</sup>) and high reflections (near 100%) is realized in a 2-D defect-free pillar array photonic crystal (PAPC) with optimized geometry (e.g., pillar array periodicity, height, and radius). We analyze its band structure, polarization, and transmission characteristics in detail with numerical methods (plane wave expansion and 3-D finite-difference time-domain (3-D-FDTD) simulations). The numerical results show that FOM ~6.85 × 10<sup>3</sup> (FOM being the figure of merit) can be achieved, which is an order of magnitude improved over the previous work. In addition, the unique simplicity of this system in which a long-lifetime delocalized electromagnetic field exists and interacts with the surrounding media permits new opportunities for point-of-care applications. Furthermore, the proposed architecture makes the implementation of lab-on-a-chip refractive index sensing possible, which is enabled by integrating PAPC on the tip of an optical fiber. |
| first_indexed | 2024-12-14T22:51:52Z |
| format | Article |
| id | doaj.art-326da72e197b4cca99e39629919aa624 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T22:51:52Z |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-326da72e197b4cca99e39629919aa6242022-12-21T22:44:42ZengIEEEIEEE Photonics Journal1943-06552016-01-018611410.1109/JPHOT.2016.26188517593278High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index SensingDaquan Yang0Changhong Li1Chuan Wang2Yuefeng Ji3Qimin Quan4State Key Laboratory of Information Photonics and Optical Communications, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaSchool of Electronic and Information Engineering, Qingdao University, Qingdao, ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaRowland Institute, Harvard University, Cambridge, MA, USAWe present a simple and robust structure to realize Fano resonance for refractive index sensing applications. The Fano resonance with ultrahigh Q factors (Q > 5.0 × 10<sup>4</sup>) and high reflections (near 100%) is realized in a 2-D defect-free pillar array photonic crystal (PAPC) with optimized geometry (e.g., pillar array periodicity, height, and radius). We analyze its band structure, polarization, and transmission characteristics in detail with numerical methods (plane wave expansion and 3-D finite-difference time-domain (3-D-FDTD) simulations). The numerical results show that FOM ~6.85 × 10<sup>3</sup> (FOM being the figure of merit) can be achieved, which is an order of magnitude improved over the previous work. In addition, the unique simplicity of this system in which a long-lifetime delocalized electromagnetic field exists and interacts with the surrounding media permits new opportunities for point-of-care applications. Furthermore, the proposed architecture makes the implementation of lab-on-a-chip refractive index sensing possible, which is enabled by integrating PAPC on the tip of an optical fiber.https://ieeexplore.ieee.org/document/7593278/Photonic crystalssensorssilicon nanophotonicsfano resonancetheory and design3-D finite-difference time-domain (3-D FDTD). |
| spellingShingle | Daquan Yang Changhong Li Chuan Wang Yuefeng Ji Qimin Quan High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing IEEE Photonics Journal Photonic crystals sensors silicon nanophotonics fano resonance theory and design 3-D finite-difference time-domain (3-D FDTD). |
| title | High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing |
| title_full | High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing |
| title_fullStr | High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing |
| title_full_unstemmed | High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing |
| title_short | High Figure of Merit Fano Resonance in 2-D Defect-Free Pillar Array Photonic Crystal for Refractive Index Sensing |
| title_sort | high figure of merit fano resonance in 2 d defect free pillar array photonic crystal for refractive index sensing |
| topic | Photonic crystals sensors silicon nanophotonics fano resonance theory and design 3-D finite-difference time-domain (3-D FDTD). |
| url | https://ieeexplore.ieee.org/document/7593278/ |
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