Vertical silicon nanowire-based optical waveguide for DNA hybridization biosensor

Ritu Raj Singh; Anamika Singh; Abhinav Gautam; Vishnu Priye

doi:10.1117/12.2507927

1 February 2019 Vertical silicon nanowire-based optical waveguide for DNA hybridization biosensor

Ritu Raj Singh, Anamika Singh, Abhinav Gautam, Vishnu Priye

Proceedings Volume 10926, Quantum Sensing and Nano Electronics and Photonics XVI; 109262M (2019) https://doi.org/10.1117/12.2507927
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Detection of DNA hybridization by Silicon Nanowire Optical Rectangular Waveguide (SNORW) using full vectorial finite element method is presented. Waveguide is designed to detect DNA hybridization through change in refractive index of single strand and double strand DNA. SNORW having high surface to volume ratio with optical confinement inside low index region permits a compact sensor. Waveguide sensing characteristics such as change in effective refractive index, waveguide sensitivity and power confinement is evaluated for optimized silicon wired waveguide.

Citation Download Citation

Ritu Raj Singh, Anamika Singh, Abhinav Gautam, and Vishnu Priye "Vertical silicon nanowire-based optical waveguide for DNA hybridization biosensor", Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 109262M (1 February 2019); https://doi.org/10.1117/12.2507927

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