Abstract
A miniature fiber-tip pressure sensor was built by using an extremely thin graphene film as the diaphragm. The graphene also acts as a light reflector which, in conjunction with reflection at the fiber end/air interface, forms a low fineness Fabry-Perot cavity. The graphene-based micro-cavity sensor demonstrated a pressure sensitivity of ∼34.8 nm/kPa with a diaphragm diameter of ∼ 25 μm, nearly two orders of magnitude higher than previously reported sensors with similar diaphragm diameters.
Original language | English |
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Title of host publication | 22nd International Conference on Optical Fiber Sensors |
Volume | 8421 |
DOIs | |
Publication status | Published - 1 Dec 2012 |
Event | 22nd International Conference on Optical Fiber Sensors - Beijing, China Duration: 15 Oct 2012 → 19 Oct 2012 |
Conference
Conference | 22nd International Conference on Optical Fiber Sensors |
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Country/Territory | China |
City | Beijing |
Period | 15/10/12 → 19/10/12 |
Keywords
- Fabry-Perot interferometer
- Fiber tip sensor
- Graphene diaphragm
- Optical fiber sensor
- Pressure sensor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering