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Phase Interrogation...
Phase Interrogation Sensor Based on All-Dielectric BIC Metasurface
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- Liu, Zhenchao (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.;Zhejiang Univ, Taizhou Hosp, Taizhou 317000, Peoples R China.
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- Guo, Tingbiao (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Tan, Qin (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Hu, Zhipeng (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Sun, Yuwei (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Fan, Houxin (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Zhang, Zhi (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- Jin, Yi (författare)
- Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China.
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- He, Sailing (författare)
- KTH,Elektromagnetism och fusionsfysik,Zhejiang Univ, Taizhou Hosp, Taizhou 317000, Peoples R China.;Zhejiang Univ, Natl Engn Res Ctr Opt Instruments, Hangzhou 310058, Peoples R China
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Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China;Zhejiang Univ, Taizhou Hosp, Taizhou 317000, Peoples R China. Zhejiang Univ, Coll Opt Sci & Engn, Ctr Opt & Electromagnet Res, Hangzhou 310058, Peoples R China. (creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- Engelska.
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Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 23:22, s. 10441-10448
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The low performance of sensors based on an all-dielectric metasurface limits their application compared to metallic counterparts. Here, for the first time, an all-dielectric BIC (bound states in the continuum) metasurface is employed for highly sensitive phase interrogation refractive index sensing. The proposed sensor is well analyzed, fabricated, and characterized. Experimentally, a high-performance BIC-based microfluidic sensing chip with a Q factor of 1200 is achieved by introducing symmetry breaking. A refractive index sensor with high figure of merit of 418 RIU-1 is demonstrated, which is beneficial to the phase interrogation. Notably, we measure a record phase interrogation sensitivity of 2.7 x 10(4) deg/RIU to the refractive index, thus enabling the all-dielectric BIC to rival the refractive index detection capabilities of metal-based sensors such as surface plasmon resonance. This scheme establishes a pivotal role of the all-dielectric metasurface in the field of ultrahigh sensitivity sensors and opens possibilities for trace detection in biochemical analysis and environment monitoring.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- sensors
- bound states in the continuum
- refractiveindex
- high sensitivity
- phase interrogation
- all dielectric metasurface
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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