Abstract

A systematic study of Bloch surface wave (BSW) properties and applications in diffraction-based biosensors is presented. The design of such devices starts with the calculation of the BSW dispersion relation for a semi-infinite one-dimensional photonic crystal. We propose an approach in which polarization and 1DPC termination effects are simply described. Since in a realistic device the number of periods is limited, we investigate the issues arising from finite size effects and the choice of a structure substrate. Diffraction efficiency is studied as a function index contrast, multilayer termination, grating thickness, and number of periods. Numerical examples for $\mathrm{Si}∕\mathrm{Si}{\mathrm{O}}_2$ and $a\text{-}{\mathrm{Si}}_{1-x}{N}_x:H$ periodic dielectric stacks are presented, showing that BSW can be exploited for the realization of efficient diffraction-based biosensors from the infrared to the visible range.

© 2009 Optical Society of America

Ultra-high sensitivity Bloch surface wave biosensor design and optimization

Yuanshi Wei, Jiakang Shi, Hui Liu, Daohan Ge, and Liqiang Zhang
J. Opt. Soc. Am. B 40(7) 1890-1895 (2023)

Optical resonators based on Bloch surface waves

Matteo Menotti and Marco Liscidini
J. Opt. Soc. Am. B 32(3) 431-438 (2015)

Guided Bloch surface wave resonance for biosensor designs

Xiu-Bao Kang, Lan-Jun Liu, Hai Lu, Hai-Dong Li, and Zhi-Guo Wang
J. Opt. Soc. Am. A 33(5) 997-1003 (2016)

Biosensors based on Bloch surface waves in one-dimensional photonic crystal with graphene nanolayers

H. Kaviani Baghbadorani, J. Barvestani, and S. Roshan Entezar
Appl. Opt. 56(3) 462-469 (2017)

Grating-coupling-based excitation of Bloch surface waves for lab-on-fiber optrodes

Michele Scaravilli, Giuseppe Castaldi, Andrea Cusano, and Vincenzo Galdi
Opt. Express 24(24) 27771-27784 (2016)