Laser & Optoelectronics Progress, Volume. 59, Issue 11, 1105002(2022)

Simulation Analysis of Grating-Assisted Ultra-Narrow Band Multispectral Plasma Resonance Sensing Structure

Xu Zhong1, Tiesheng Wu1,3、*, Xueyu Wang2、**, Huixian Zhang1, Zhihui Liu1, Dan Yang1, Zuning Yang1, Yan Liu1, and Rui Liu1
Author Affiliations
  • 1Key Laboratory of Wireless Broadband and Signal Processing, School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, Guangxi , China
  • 2School of Electronic Engineering Bupt, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 3Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, Guangdong , China
  • show less

    Full width at half maximum (FWHM) is an important factor affecting the performance of the sensor. In order to improve the quality factor of the surface plasmon resonance sensor, a grating-assisted ultra-narrow band multispectral plasmon resonance sensor structure is proposed in this paper. The structure is composed of periodically alternating SiO2 and Au rectangular nanorods and is placed on the SiO2/Al2O3 thin film layer. The full vector finite element method is used to simulate the optical transmission and sensing characteristics, and the effects of structural parameters and polarization state of incident light on FWHM and sensing characteristics are analyzed. The simulation results show that in the wavelength range of 800-1100 nm, there are two dips formed by plasma resonance and dielectric grating in the transmission spectrum of the structure. The corresponding FWHM can reach 0.35 nm and 0.59 nm, respectively. The refractive index sensitivity is 525.7 nm /RIU and 475.7 nm /RIU, respectively. The figure of merit is 1502.00 RIU-1 and 806.27 RIU-1, respectively, which had potential applications in biological detection, drug screening, membrane biology and other fields.

    Tools

    Get Citation

    Copy Citation Text

    Xu Zhong, Tiesheng Wu, Xueyu Wang, Huixian Zhang, Zhihui Liu, Dan Yang, Zuning Yang, Yan Liu, Rui Liu. Simulation Analysis of Grating-Assisted Ultra-Narrow Band Multispectral Plasma Resonance Sensing Structure[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1105002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Diffraction and Gratings

    Received: Jul. 29, 2021

    Accepted: Sep. 24, 2021

    Published Online: Jun. 9, 2022

    The Author Email: Wu Tiesheng (tieshengw@163.com), Wang Xueyu (xueyuwang@hotmail.com)

    DOI:10.3788/LOP202259.1105002

    Topics