Abstract
A photonic-crystal waveguide sensor is presented for biosensing. The sensor is applied for refractive index measurements and detection of protein-concentrations. Concentrations around 10 μg/ml (0.15μMolar) are measured with excellent signal to noise ratio, and a broad, dynamic refractive index sensing range extending from air to high viscous fluids is presented.
Original language | English |
---|---|
Journal | Optics Express |
Volume | 15 |
Issue number | 6 |
Pages (from-to) | 3169-3176 |
ISSN | 1094-4087 |
DOIs | |
Publication status | Published - 2007 |