Porous waveguide in the Kretschmann configuration for small molecule detection

Yang Jiao; Guoguang Rong; Sharon M. Weiss

doi:10.1117/12.819414

29 April 2009 Porous waveguide in the Kretschmann configuration for small molecule detection

Yang Jiao, Guoguang Rong, Sharon M. Weiss

Proceedings Volume 7322, Photonic Microdevices/Microstructures for Sensing; 732205 (2009) https://doi.org/10.1117/12.819414
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

In this work, we theoretically and experimentally demonstrate a highly sensitive porous silicon membrane waveguide biosensor in the Kretschmann configuration, and show how the cladding material directly impacts the waveguide sensor detection sensitivity and resonance width. Dielectric and metal-clad porous waveguides in the Kretchmann configuration have the potential to achieve significantly enhanced performance for small molecule detection compared to planar waveguide and surface plasmon resonance sensors due to increased surface area and strong field confinement in the porous waveguide layer. First order perturbation theory calculations predict that the quality factors of polymer-cladded porous silicon waveguides with porous silicon losses less than ~500 dB/cm are at least two times larger than the quality factors of gold-cladded porous silicon waveguides and traditional surface plasmon resonance sensors.

Citation Download Citation

Yang Jiao, Guoguang Rong, and Sharon M. Weiss "Porous waveguide in the Kretschmann configuration for small molecule detection", Proc. SPIE 7322, Photonic Microdevices/Microstructures for Sensing, 732205 (29 April 2009); https://doi.org/10.1117/12.819414

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available