Towards fully integrated photonic displacement sensors
| Autor: | Silke Christiansen, Uwe Mick, Ankan Bag, Sebastian A. Schulz, Martin Neugebauer, Peter Banzer |
|---|---|
| Přispěvatelé: | University of St Andrews. School of Physics and Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics - Instrumentation and Detectors
TK Science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION General Physics and Astronomy FOS: Physical sciences Physics::Optics 02 engineering and technology Applied Physics (physics.app-ph) 01 natural sciences Article General Biochemistry Genetics and Molecular Biology Displacement (vector) TK Electrical engineering. Electronics Nuclear engineering Optics Position (vector) 0103 physical sciences 010306 general physics lcsh:Science Lithography QC Wavefront Physics Nanophotonics and plasmonics Multidisciplinary 500 Naturwissenschaften und Mathematik::530 Physik::539 Moderne Physik business.industry DAS Integrated optics Physics - Applied Physics General Chemistry Instrumentation and Detectors (physics.ins-det) 021001 nanoscience & nanotechnology Nanosensors QC Physics lcsh:Q Photonics Antenna (radio) 0210 nano-technology business Rotation (mathematics) Excitation Physics - Optics Optics (physics.optics) |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | The field of optical metrology with its high precision position, rotation and wavefront sensors represents the basis for lithography and high resolution microscopy. However, the on-chip integration - a task highly relevant for future nanotechnological devices - necessitates the reduction of the spatial footprint of sensing schemes by the deployment of novel concepts. A promising route towards this goal is predicated on the controllable directional emission of the fundamentally smallest emitters of light, i.e. dipoles, as an indicator. Here we realize an integrated displacement sensor based on the directional emission of Huygens dipoles excited in an individual dipolar antenna. The position of the antenna relative to the excitation field determines its directional coupling into a six-way crossing of photonic crystal waveguides. In our experimental study supported by theoretical calculations, we demonstrate the first prototype of an integrated displacement sensor with a standard deviation of the position accuracy below $\lambda$/300 at room temperature and ambient conditions. Comment: Ankan and Martin contributed equally, 6 pages, 5 figures |
| Databáze: | OpenAIRE |
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