Porous Silicon Based Bragg-Grating Resonator for Refractive Index Biosensor
- 141 Downloads
In this work, we have evaluated the biosensing capability of the porous silicon (PSi) based sidewall Bragg-grating resonator. The approximation of the quasi-TE mode full vector for the eigenmode calculation is performed using a full vector mode solver. The transmission spectra of the device are evaluated using the transfer matrix method. We have observed a shift in the resonant band for a change in the refractive index of biomaterial in the upper cladding region. The theoretical value of the bulk sensitivity is calculated to be 387.48 nm/RIU. The device is suitable for biosensing application due to its ability of interacting signal with the infiltrated analytes in the PSi waveguide core.
KeywordsBiosensor evanescent field eigen mode
The authors would like to acknowledge the mutual understanding for joint and collaborative work among researchers from Malaviya National Institute of Technology Jaipur (India), Universiti Teknologi Malaysia, Johor Bahru (Malaysia), and the Ton Duc Thang University, Ho Chi Minh City (Vietnam).
- S. Sahu, K. V. Kozadaev, and G. Singh, “Michelson interferometer based refractive index biosensor,” in Proceeding of 13th International Conference on Fiber Optics and Photonics, Kanpur, India, 2016, pp. 1–3.Google Scholar
- S. Sahu and G. Singh, “Modeling of phase shift bragg grating biosensor for non-invasive detection of blood components,” in Proceeding of IEEE International Conference on Recent Advances and Innovations in Engineering (ICRAIE), Jaipur, India, 2016, pp. 1–3.Google Scholar
- W. C. L. Hopman, P. Pottier, D. Yudistira, J. Van Lith, P. V. Lambeck, R. M. De La Rue, et al., “Quasi-one-dimensional photonic crystal as a compact building-block for refractometric optical sensors,” IEEE Journal of Selected Topics in Quantum Electronics, 2005, 11(1): 11–16.ADSCrossRefGoogle Scholar
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.