Abstract
A quasi-D-Shaped photonic crystal fiber plasmonic sensor with rectangular lattice is proposed by using Au as plasmonic layer and graphene to enhance the sensing performance. By moving the core to the edge of the fiber, a shorter polishing depth is achieved which makes the fiber proposed has greater mechanical strength than other common D-shaped fiber. Benefited from the natural advantage of rectangular lattice, the dual sensing channels makes the proposed sensor shows a maximum wavelength interrogation sensitivity of 3877nm/RIU with the dynamic refractive index range from 1.33 to 1.42 and a maximum amplitude sensitivity of 1236RIU−1 with the analyte RI=1.41 in the visible region. The corresponding resolution are 2.58×10−5 and 8.1×10−6 with the methods of wavelength interrogation method and amplitude-(or phase-) based method. These advantages make the proposed sensor a competitive candidate for biosensing in the field of refractive index detection such as water quality analysis, clinical medicine detection, and pharmaceutical testing.
© 2018 The Author(s)
PDF ArticleMore Like This
Shuai Wang, Xiaohong Sun, and Gangding Peng
JTu2A.56 Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials (BGPP) 2018
Shweta Mittal, Piyush Shrivastava, Ashish Tummuri, Ankur Saharia, and Manish Tiwari
JW2A.8 3D Image Acquisition and Display: Technology, Perception and Applications (3D) 2022
Suoda Chu, K. Nakkeeran, Abdosllam M. Abobaker, Sumeet S. Aphale, P. Ramesh Babu, and K. Senthilnathan
W3A.83 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2018