Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique
Whispering gallery mode micro-bubble optical cavities are asymmetrical ellipsoids in experimental settings, which makes their modes nondegenerate. A complicated dense spectrum is thus generated. Overlapping and coupled resonances exist in this dense spectrum. In this study, we determined that the or...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/18/6256 |
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| author | Jinliang Hu Sheng Liu Biao Li Zhihe Guo Xiang Wu Liying Liu Lei Xu |
| author_facet | Jinliang Hu Sheng Liu Biao Li Zhihe Guo Xiang Wu Liying Liu Lei Xu |
| author_sort | Jinliang Hu |
| collection | DOAJ |
| description | Whispering gallery mode micro-bubble optical cavities are asymmetrical ellipsoids in experimental settings, which makes their modes nondegenerate. A complicated dense spectrum is thus generated. Overlapping and coupled resonances exist in this dense spectrum. In this study, we determined that the orthogonal demodulation Pound-Drever-Hall technique can be used to analyze complicated resonances. Using this method, overlapping weak and strong coupling resonances can be analyzed. Compared to spectrum simplification and the ab initio theory of Fano resonances, this method is repeatable, simple, sensitive, and accurate. The method can increase the measurement range of differential resonance sensing, thus allowing the differential sensing of overlapped resonances. |
| first_indexed | 2024-03-10T16:27:18Z |
| format | Article |
| id | doaj.art-526631dbd26f49608dfe4ce50bf3b1ab |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T16:27:18Z |
| publishDate | 2020-09-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-526631dbd26f49608dfe4ce50bf3b1ab2023-11-20T13:04:04ZengMDPI AGApplied Sciences2076-34172020-09-011018625610.3390/app10186256Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall TechniqueJinliang Hu0Sheng Liu1Biao Li2Zhihe Guo3Xiang Wu4Liying Liu5Lei Xu6Key Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaKey Lab for Micro and Nanophotonic Structures (Ministry of Education), Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, ChinaWhispering gallery mode micro-bubble optical cavities are asymmetrical ellipsoids in experimental settings, which makes their modes nondegenerate. A complicated dense spectrum is thus generated. Overlapping and coupled resonances exist in this dense spectrum. In this study, we determined that the orthogonal demodulation Pound-Drever-Hall technique can be used to analyze complicated resonances. Using this method, overlapping weak and strong coupling resonances can be analyzed. Compared to spectrum simplification and the ab initio theory of Fano resonances, this method is repeatable, simple, sensitive, and accurate. The method can increase the measurement range of differential resonance sensing, thus allowing the differential sensing of overlapped resonances.https://www.mdpi.com/2076-3417/10/18/6256whispering-gallery mode (WGM) microcavitymicro-bubble resonatorPound-Hall-Drever techniquecomplicated spectrum analysis |
| spellingShingle | Jinliang Hu Sheng Liu Biao Li Zhihe Guo Xiang Wu Liying Liu Lei Xu Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique Applied Sciences whispering-gallery mode (WGM) microcavity micro-bubble resonator Pound-Hall-Drever technique complicated spectrum analysis |
| title | Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique |
| title_full | Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique |
| title_fullStr | Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique |
| title_full_unstemmed | Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique |
| title_short | Highly Sensitive Complicated Spectrum Analysis in Micro-Bubble Resonators Using the Orthogonal Demodulation Pound–Drever–Hall Technique |
| title_sort | highly sensitive complicated spectrum analysis in micro bubble resonators using the orthogonal demodulation pound drever hall technique |
| topic | whispering-gallery mode (WGM) microcavity micro-bubble resonator Pound-Hall-Drever technique complicated spectrum analysis |
| url | https://www.mdpi.com/2076-3417/10/18/6256 |
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