Biosensing with one-dimensional photonic bandgap structure

Huimin Ouyang; Lisa A. DeLouise; Marc Christophersen; Benjamin L. Miller; Philippe M. Fauchet

doi:10.1117/12.561138

14 October 2004 Biosensing with one-dimensional photonic bandgap structure

Huimin Ouyang, Lisa A. DeLouise, Marc Christophersen, Benjamin L. Miller, Philippe M. Fauchet

Proceedings Volume 5511, Tuning the Optical Response of Photonic Bandgap Structures; (2004) https://doi.org/10.1117/12.561138
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The optical properties of photonic bandgap (PBG) structures are highly sensitive to the geometry and refractive index. This makes PBG structures a good host for sensor applications. The binding of target species inside the PBG structure changes the refractive index of the material, which can be detected by monitoring the optical response of the device. One-dimensional PBG biosensors based on porous silicon (PSi) have been fabricated. The device is a microcavity, made of a symmetry breaking PSi layer (defect layer) inserted between two PSi Bragg mirrors. Narrow resonances are introduced in the photoluminescence and reflectance spectra. The large internal surface of the sensor is functionalized for the capture of target biological materials. When the sensor is exposed to the target, binding to the internal surface increases the effective optical thickness of the microcavity and thus causes a red shift of the optical spectrum. The sensor's sensitivity is determined by the morphology and geometry of the device. We will present the details of the materials science, sensor fabrication and optimization, and also describe experiments performed with biological targets.

Citation Download Citation

Huimin Ouyang, Lisa A. DeLouise, Marc Christophersen, Benjamin L. Miller, and Philippe M. Fauchet "Biosensing with one-dimensional photonic bandgap structure", Proc. SPIE 5511, Tuning the Optical Response of Photonic Bandgap Structures, (14 October 2004); https://doi.org/10.1117/12.561138

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