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Proceedings Paper

Improving the performance of silicon photonic rings, disks, and Bragg gratings for use in label-free biosensing
Author(s): Shon Schmidt; Jonas Flueckiger; WenXuan Wu; Samantha M. Grist; Sahba Talebi Fard; Valentina Donzella; Pakapreud Khumwan; Emily R. Thompson; Qian Wang; Pavel Kulik; Xu Wang; Ahmed Sherwali; James Kirk; Karen C. Cheung; Lukas Chrostowski; Daniel Ratner
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Paper Abstract

Silicon photonics biosensors continue to be an area of active research, showing the potential to revolutionize Labon- Chip applications ranging from environmental monitoring to medical diagnostics. As near-infrared light propagates through nano-scale silicon wires on an SOI chip, a portion of the light resides outside the waveguide and interacts with biomolecules and the biological matrix on the waveguide’s surface. This capability makes silicon photonics an ideal platform for label-free biosensing. Additionally, the SOI platform is compatible with standard CMOS fabrication processes, facilitating manufacturing at the economies of scale offered by today’s foundries. In this paper, we describe our efforts to improve the performance of SOI-based biosensors—specifically, TE and TM mode microring resonators, thin waveguide resonators, sub-wavelength grating resonators, as well as strip and slot Bragg gratings. We compare device performance in terms of sensitivity, intrinsic limit of detection, and their potential for biosensing applications in Lab-on-Chip systems.

Paper Details

Date Published: 27 August 2014
PDF: 38 pages
Proc. SPIE 9166, Biosensing and Nanomedicine VII, 91660M (27 August 2014); doi: 10.1117/12.2062389
Show Author Affiliations
Shon Schmidt, Univ. of Washington (United States)
Jonas Flueckiger, The Univ. of British Columbia (Canada)
WenXuan Wu, Univ. of Washington (United States)
Samantha M. Grist, The Univ. of British Columbia (Canada)
Sahba Talebi Fard, The Univ. of British Columbia (Canada)
Valentina Donzella, The Univ. of British Columbia (Canada)
Pakapreud Khumwan, Univ. of Washington (United States)
Emily R. Thompson, Univ. of Washington (United States)
Qian Wang, Univ. of Washington (United States)
Pavel Kulik, Univ. of Washington (United States)
Xu Wang, The Univ. of British Columbia (Canada)
Ahmed Sherwali, The Univ. of British Columbia (Canada)
James Kirk, Univ. of Washington (United States)
Karen C. Cheung, The Univ. of British Columbia (Canada)
Lukas Chrostowski, The Univ. of British Columbia (Canada)
Daniel Ratner, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 9166:
Biosensing and Nanomedicine VII
Hooman Mohseni; Massoud H. Agahi; Manijeh Razeghi, Editor(s)

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