Self-referenced waveguide grating sensor
| Autor: | Florian Kehl, Stephane Follonier |
|---|---|
| Přispěvatelé: | University of Zurich, Kehl, Florian |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Guided-mode resonance 610 Medicine & health 02 engineering and technology Integrated circuit design 3107 Atomic and Molecular Physics and Optics engineering.material 010402 general chemistry 01 natural sciences Noise (electronics) law.invention 170 Ethics Optics Coating law Blazed grating 10237 Institute of Biomedical Engineering Diffraction grating business.industry 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences engineering Optoelectronics 0210 nano-technology business Refractive index Communication channel |
| Zdroj: | Optics Letters. 41:1447 |
| ISSN: | 1539-4794 0146-9592 |
| DOI: | 10.1364/ol.41.001447 |
| Popis: | Like any other sensor system, performances of waveguide grating couplers are affected by adverse effects such as noise and drift, mainly limiting the devices' resolution and long-term stability. It is therefore often required to reference the measurement with a secondary, parallel sensor to decrease these undesired influences. Here we present a simple but effective method to self-reference a label-free waveguide grating coupler by partially coating and thereby passivating the sensitive area with an inert layer. The presented waveguide grating chip design offers the advantage of internal self-referencing for adverse effects, such as inherent system instabilities, mechanical disturbance, or temperature drift, without the need of a sacrificial reference channel. |
| Databáze: | OpenAIRE |
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