Full-Wave Simulation of an Optofluidic Transmission-Mode BiosensorE. P. Furlani, N. M. Litchinitse, and R. Biswas
The Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York, USA
Department of Electrical Engineering, The State University of New York at Buffalo,Buffalo, New York, USA
We present a study of an optofluidic biosensor. The sensor operates in a transmission mode wherein detection is based on a shift in the transmission spectrum caused by the contrast in refractive index between the carrier fluid and the target biomaterial. We study the behavior of the sensor using 2D full-wave electromagnetic analysis, and perform parametric studies of sensitivity as a function of key device parameters. Device optimization can be accomplished using the COMSOL RF Module, and parametric designs can be completed within a few minutes on a modern workstation.