QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING

J. Wang; J. Kühne; T. Karamanos; C. Rockstuhl; S. A. Maier; A. Tittl

QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING

J. Wang, J. Kühne, T. Karamanos, C. Rockstuhl, S. A. Maier, A. Tittl

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

Abstract

We demonstrate an all-dielectric crescent metasurface made of sub-wavelength silicon meta-atoms, realizing the recently introduced new physics of quasi-bound states in the continuum (quasi-BIC). The crescent metasurface supports a fundamental quasi-BIC together with a higher-order resonance with arbitrarily tunable quality factors and enhanced electromagnetic fields near the resonator surface via finely tailoring the geometry of the crescent shape. Thanks to these unique properties, such a metasurface can serve as an optical label-free sensor for multiplexed bioassays with high sensitivity and low detection limit with the potential for integrating microfluidics for in-situ on chip detection.

Original language	English
Title of host publication	MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Place of Publication	United States
Publisher	Chemical and Biological Microsystems Society
Pages	1601-1602
Number of pages	2
ISBN (Electronic)	9781733419031
Publication status	Published - 2021
Externally published	Yes
Event	International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021) - Online, Palm Springs, United States of America Duration: 10 Oct 2021 → 14 Oct 2021 Conference number: 25th https://microtas2021.org/about/conference_info.html (Wesbite)

Conference

Conference	International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021)
Abbreviated title	MicroTAS 2021
Country/Territory	United States of America
City	Palm Springs
Period	10/10/21 → 14/10/21
Internet address	https://microtas2021.org/about/conference_info.html (Wesbite)

Keywords

All-dielectric metasurface
Bound states in the continuum
Higher-order resonance
Optical sensor
Sensitivity

Cite this

@inproceedings{13c9bd25db344060a36a162ebe37b61e,

title = "QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING",

abstract = "We demonstrate an all-dielectric crescent metasurface made of sub-wavelength silicon meta-atoms, realizing the recently introduced new physics of quasi-bound states in the continuum (quasi-BIC). The crescent metasurface supports a fundamental quasi-BIC together with a higher-order resonance with arbitrarily tunable quality factors and enhanced electromagnetic fields near the resonator surface via finely tailoring the geometry of the crescent shape. Thanks to these unique properties, such a metasurface can serve as an optical label-free sensor for multiplexed bioassays with high sensitivity and low detection limit with the potential for integrating microfluidics for in-situ on chip detection.",

keywords = "All-dielectric metasurface, Bound states in the continuum, Higher-order resonance, Optical sensor, Sensitivity",

author = "J. Wang and J. K{\"u}hne and T. Karamanos and C. Rockstuhl and Maier, {S. A.} and A. Tittl",

note = "Funding Information: In summary, we demonstrate an all-dielectric crescent metasurface, which supports both a fundamental quasi-BIC resonance and a higher-order resonance. Both resonances can be employed for biosensing in air and buffer environment with the potential for integrating microfluidics to achieve in-situ on chip bioassays. Significantly, when detection takes place in buffer, the higher-order resonance is superior to the fundamental quasi-BIC one due to its much narrowed half of line width. Additionally, by tailoring the geometry of the crescent shape, the Q factor and the enhanced electromagnetic fields can be precisely controlled for a wide range of applications. ACKNOWLEDGEMENTS This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy−EXC 2089/1−390776260 and the Emmy Noether Program TI 1063/1. REFERENCES [1] Anker, J. N. et al. “Biosensing with Plasmonic Nanosensors.” Nature Mater., 2009, 7, 442-453. [2] Kuznetsov, A. I. et al. “Optically Resonant Dielectric Nanostructures.” Science 2016, 354, aag2472-6. [3] Marinica, D. C. et al. “Bound States in the Continuum in Photonics.” Phys. Rev. Lett. 2008, 100, 1–4. [4] Koshelev, K. et al. “Asymmetric Metasurfaces with High-Q Resonances Governed by Bound States in the Continuum.” Phys. Rev. Lett. 2018, 121, 193903. CONTACT * J. Wang; phone: +31-6876-22984; [email protected] Publisher Copyright: {\textcopyright} 2021 MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. All rights reserved.; International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021), MicroTAS 2021 ; Conference date: 10-10-2021 Through 14-10-2021",

year = "2021",

language = "English",

pages = "1601--1602",

booktitle = "MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences",

publisher = "Chemical and Biological Microsystems Society",

address = "United States of America",

url = "https://microtas2021.org/about/conference_info.html",

}

Wang, J, Kühne, J, Karamanos, T, Rockstuhl, C, Maier, SA & Tittl, A 2021, QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING. in MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society, United States, pp. 1601-1602, International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2021), Palm Springs, California, United States of America, 10/10/21.

QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING. / Wang, J.; Kühne, J.; Karamanos, T. et al.
MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences. United States: Chemical and Biological Microsystems Society, 2021. p. 1601-1602.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

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AB - We demonstrate an all-dielectric crescent metasurface made of sub-wavelength silicon meta-atoms, realizing the recently introduced new physics of quasi-bound states in the continuum (quasi-BIC). The crescent metasurface supports a fundamental quasi-BIC together with a higher-order resonance with arbitrarily tunable quality factors and enhanced electromagnetic fields near the resonator surface via finely tailoring the geometry of the crescent shape. Thanks to these unique properties, such a metasurface can serve as an optical label-free sensor for multiplexed bioassays with high sensitivity and low detection limit with the potential for integrating microfluidics for in-situ on chip detection.

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AN - SCOPUS:85136947288

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BT - MicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences

PB - Chemical and Biological Microsystems Society

CY - United States

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ER -

QUASI-BOUND STATES IN THE CONTINUUM IN ALL-DIELECTRIC METASURFACE TOWARDS BIOSENSING

Abstract

Conference

Keywords

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Cite this