研究目的
To enhance the sensitivity of the refractive index sensor by incorporating Bragg gratings in the standard ring resonator design.
研究成果
The proposed design of plasmonic sensor offers an enhanced sensitivity due to the intensification of surface plasmons between the teeth of the Bragg grating embedded in the resonator cavity. The spectral characteristics are studied by varying the geometric parameters of the sensor. Our proposed design has best S, FOM and Q-factor of 1680 nm/RIU, 48 and 48.4, respectively which is much higher than several previously reported values.
研究不足
The fabrication of the proposed sensor design requires precise control over the geometric parameters to avoid a big shift in λres due to a few nm of fabrication error.
1：Experimental Design and Method Selection:
The transmission spectrum and electric field distribution of the device are simulated using the finite element method (FEM).
2：Sample Selection and Data Sources:
The metal and insulator materials are defined as silver (Ag) and air, respectively.
3：List of Experimental Equipment and Materials:
A thin layer of Ag is deposited on a silica (SiO2) substrate followed by E-beam lithography patterning of the design.
4：Experimental Procedures and Operational Workflow:
The spectral characteristics are studied by varying the geometric parameters of the sensor.
5：Data Analysis Methods:
The numerical simulation results obtained from the transmission spectrum are used to examine the sensing characteristics of the structure.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
