Nanoslotted microring resonator for high figure of merit refractive index sensing

• Autorzy: Yang Daquan , Duan Bing , Zhang Xuan , Lu Hui

Identyfikatory

DOI

10.37190/oa200103

• Języki publikacji: EN

Abstrakty

EN

A nanoslotted microring resonator (NSMR) with enhanced light-matter interaction has been designed, which can be used for high sensitive refractive index sensing. The performance of the device is investigated theoretically based on a three-dimensional finite-difference time-domain (3D-FDTD) method. In order to achieve high figure of merit sensing, the nanoslot geometry is exploited to make the optical field strongly localized inside the low index region and overlap sufficiently with the analytes. By using the 3D-FDTD method, the proposed NSMR sensor device achieves a high Q-factor (Q > 10⁵) and sensitivity ~100 nm/RIU (RIU – refractive index unit). Moreover, the strong light confinement introduced by the nanoslot in NSMR results in the sensor figure of merit as high as 6.73 × 10³. Thus, the design we proposed is a promising platform for refractive index-based biochemical sensing and lab-on-a-chip applications.

Słowa kluczowe

EN

nanoslot; microring resonator; refractive index sensor; figure of merit; integrated nanophotonics; 3D-FDTD

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2020
• Tom: Vol. 50, nr 1
• Strony: 37--47
• Opis fizyczny: Bibliogr. 44 poz., rys.

Twórcy

autor

Yang Daquan

• State Key Laboratory of Information Photonics and Optical Communication, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Duan Bing

• State Key Laboratory of Information Photonics and Optical Communication, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Zhang Xuan

• State Key Laboratory of Information Photonics and Optical Communication, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Lu Hui

• Cyberspace Institute of Advanced Technology, Guangzhou University, Guangzhou 510006, China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).