SPR biosensor based on polymer multi-mode optical waveguide and nanoparticle signal enhancement
Journal Article
Gabriela Walter, J., Eilers, A., Alwis, L., Wilhelm Roth, B., & Bremer, K. (2020)
SPR biosensor based on polymer multi-mode optical waveguide and nanoparticle signal enhancement. Sensors, 20(10), https://doi.org/10.3390/s20102889
We present a surface plasmon resonance (SPR) biosensor that is based on a planar-optical multi-mode (MM) polymer waveguide structure applied for the detection of biomolecules ...
Determination of the Aspect-ratio Distribution of Gold Nanorods in a Colloidal Solution using UV-visible absorption spectroscopy
Journal Article
Kumar, R., Binetti, L., Nguyen, H. T., Alwis, L. S. M., Agrawal, A., Sun, T., & Grattan, K. T. V. (2019)
Determination of the Aspect-ratio Distribution of Gold Nanorods in a Colloidal Solution using UV-visible absorption spectroscopy. Scientific Reports, 9, https://doi.org/10.1038/s41598-019-53621-4
Knowledge of the distribution of the aspect ratios (ARs) in a chemically-synthesized colloidal solution of Gold Nano Rods (GNRs) is an important measure in determining the qua...
Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor
Journal Article
Mądry, M., Alwis, L., Binetti, L., Pajewski, Ł., & Bereś-Pawlik, E. (2019)
Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor. IEEE Sensors Journal, 19(20), 9215-9220. https://doi.org/10.1109/JSEN.2019.2922041
A fiber ring laser sensor setup utilizing FBGs (Fiber Bragg Gratings) for simultaneous measurement of ambient temperature and relative humidity (RH) is presented. Two FBGs are...
Integrated fiber Bragg grating incorporated textile carbon reinforcement structures
Conference Proceeding
Alwis, L., Bremer, K., Zheng, Y., Weigand, F., Kuhne, M., Helbig, R., & Roth, B. (2017)
Integrated fiber Bragg grating incorporated textile carbon reinforcement structures. In 2017 IEEE Sensorshttps://doi.org/10.1109/ICSENS.2017.8234106
An optical fibre Bragg grating (FBG) based strain sensor network incorporated in a functionalized textile-based carbon structure (FTCS) that can be used for structural health ...
Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors
Journal Article
Bremer, K., Weigand, F., Zheng, Y., Alwis, L. S., Helbig, R., & Roth, B. (2017)
Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors. Sensors, 17(2), 345. https://doi.org/10.3390/s17020345
Optical fiber-based sensors " embedded " in functionalized carbon structures (FCSs) and textile net structures (TNSs) based on alkaline-resistant glass are introduced for the ...
A pilot study: Evaluation of sensor system design for optical fibre humidity sensors subjected to aggressive air sewer environment
Conference Proceeding
Alwis, L. S. M., Bustamante, H., Bremer, K., Roth, B., Sun, T., & Grattan, K. T. V. (2017)
A pilot study: Evaluation of sensor system design for optical fibre humidity sensors subjected to aggressive air sewer environment. In 2016 IEEE SENSORS. https://doi.org/10.1109/icsens.2016.7808482
Research has identified that humidity plays a fundamental role on the conversion of hydrogen sulphide into sulphuric acid during corrosion of concrete in gravity sewers and th...
Optical Fibre Refractive Index Sensor in a Hybrid Fibre Grating Configuration
Journal Article
Alwis, L., Sun, T., & T.V. Grattan, K. (2015)
Optical Fibre Refractive Index Sensor in a Hybrid Fibre Grating Configuration. Procedia Engineering, 120, 11-14. https://doi.org/10.1016/j.proeng.2015.08.555
A temperature compensated Refractive Index (RI) sensor incorporating a Long Period Grating (LPG) and a Fibre Bragg Grating (FBG) in a series configuration has been developed a...