Single air-mode resonance photonic crystal nanofiber cavity for ultra-high sensitivity refractive index sensing

• Autorzy: Zhang Yanni , Yang Jiaxi , Song Meiqi , Zhang Xuan , Yang Daquan

Identyfikatory

DOI

10.37190/oa200203

• Języki publikacji: EN

Abstrakty

EN

We propose a design of series-connected one-dimensional photonic crystal nanofiber cavity sensor (1-D PC-NCS) and one-dimensional photonic crystal nanofiber bandgap filter (1-D PC-NBF). The proposed structure can get a single air mode for refractive index sensing with its extinction ratio of 58.64 dB. It filters out the high order mode and reduces the interaction between signals. By 3D FDTD, the calculated sensitivity is 848.18 nm/RIU (RIU – refractive index unit). Compared with general silicon on-chip nanobeam cavity, the sensitivity is increased by eight times. The additional 1-D PC-NBF will not change the sensitivity and the position of the resonance wavelength. Therefore, the new design we propose addresses the issue of crosstalk, and can be applied to ultra-high sensitivity index-based gas sensing and biosensing without the need for complicated coupling systems.

Słowa kluczowe

EN

photonic crystal nanocavity; air mode nanofiber; refractive index sensor; sensitivity

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2020
• Tom: Vol. 50, nr 2
• Strony: 199--207
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Zhang Yanni

• International School, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Yang Jiaxi

• International School, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Song Meiqi

• International School, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Zhang Xuan

• School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

autor

Yang Daquan

• School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Bibliografia

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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).