All Outputs (8)

External Refractive Index Sensitivity Enhancement of a Long Period Grating by Graphene Oxide Overlay (2019)
Conference Proceeding
Dissanayake, K., Ghosh, S., Binetti, L., Rente, B., Alwis, L., Sun, T., & Grattan, K. (2019). External Refractive Index Sensitivity Enhancement of a Long Period Grating by Graphene Oxide Overlay.

In this paper, an external refractive index sensor is presented based on a graphene oxide coated long period grating and based on creating a stable graphene oxide coating on the fibre surface using a drop casting technique. The wavelength shift sensi... Read More about External Refractive Index Sensitivity Enhancement of a Long Period Grating by Graphene Oxide Overlay.

Determination of the Aspect-ratio Distribution of Gold Nanorods in a Colloidal Solution using UV-visible absorption spectroscopy (2019)
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, Article 17469. 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 quality of synthesis, and consequently the performance of the GNRs generated f... Read More about Determination of the Aspect-ratio Distribution of Gold Nanorods in a Colloidal Solution using UV-visible absorption spectroscopy.

Functionalized Carbon Reinforcement Structures with Optical Fibre Sensors for Carbon Concrete Composites (2019)
Conference Proceeding
Bremer, K., Alwis, L. S. M., Weigand, F., Kuhne, M., Heibig, R., & Roth, B. (2019). Functionalized Carbon Reinforcement Structures with Optical Fibre Sensors for Carbon Concrete Composites. . https://doi.org/10.1109/cleoe-eqec.2019.8872285

Here we present our latest efforts in the development of functionalized carbon reinforcement structures (FCSs). FCSs are textile based carbon structures that are functionalized with optical fibre sensors and are designed for the reinforcement as well... Read More about Functionalized Carbon Reinforcement Structures with Optical Fibre Sensors for Carbon Concrete Composites.

Measurement of viscoelasticity of sodium alginate by Fibre Bragg Grating (2019)
Conference Proceeding
Binetti, L., Stankiewicz, A., & Alwis, L. (2019). Measurement of viscoelasticity of sodium alginate by Fibre Bragg Grating. . https://doi.org/10.3390/proceedings2019015033

A novel sensor for measuring viscoelastic properties of sodium alginate (SA) in distilled water of concentration (0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 w/w%) has been tested. The sensor used is an FBG (Fiber Bragg Grating) fibre optic sensor. It has seen... Read More about Measurement of viscoelasticity of sodium alginate by Fibre Bragg Grating.

Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment. (2019)
Journal Article
Bremer, K., Alwis, L., Zheng, Y., Weigand, F., Kuhne, M., Helbig, R., & Roth, B. (2019). Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment. Applied Sciences, 9(12), https://doi.org/10.3390/app9122476

The paper presents an investigation into the durability of functionalized carbon structures (FCS) in a highly alkaline concrete environment. First, the suitability of optical fibers with different coatings—i.e., acrylate, polyimide, or carbon—for the... Read More about Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment..

Intensity-modulated PM-PCF Sagnac loop in a DWDM setup for strain measurement (2019)
Journal Article
Alwis, L., Madry, M., & Beres-Pawlik, E. (2019). Intensity-modulated PM-PCF Sagnac loop in a DWDM setup for strain measurement. Applied Sciences, 9(11), https://doi.org/10.3390/app9112374

A novel intensity-modulated Sagnac loop sensor based on polarization-maintaining photonic crystal fiber (PM-PCF) in a setup with a dense wavelength division multiplexer (DWDM) for strain measurement is presented. The sensor head is made of PM-PCF spl... Read More about Intensity-modulated PM-PCF Sagnac loop in a DWDM setup for strain measurement.

Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor (2019)
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 incorporated as tunable filters for a dual-wavelength laser emission, wher... Read More about Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor.

Optical Fiber-Based Heavy Metal Detection Using the Localized Surface Plasmon Resonance Technique (2019)
Journal Article
Dhara, P., Kumar, R., Binetti, L., Nguyen, H. T., Alwis, L. S., Sun, T., & Grattan, K. T. V. (2019). Optical Fiber-Based Heavy Metal Detection Using the Localized Surface Plasmon Resonance Technique. IEEE Sensors Journal, 19(19), 8720-8726. https://doi.org/10.1109/JSEN.2019.2921701

An innovative, reflection-based localized surface plasmon resonance (LSPR) fiber-optic sensor has been developed and demonstrated to detect the concentration of several heavy metal lead ions in an aqueous solution. By using a self-assembling techniqu... Read More about Optical Fiber-Based Heavy Metal Detection Using the Localized Surface Plasmon Resonance Technique.