| Autor: |
Faruki, Md Jahid, Ab Razak, Mohd Zulhakimi, Azzuhri, Saaidal R., Rahman, Muhammad Towfiqur, Soltanian, Mohammad Reza Khalifeh, Brambilla, Gilberto, Rahman, B. M. Azizur, Grattan, Kenneth T. V., De La Rue, Richard, Ahmad, Harith |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| ISSN: |
2158-5849 |
| Popis: |
In this study, the sensitivity and the linearity of the un-coated and TiO2-coated microfiber knot resonator (MKR) have been analyzed. The MKR is very sensitive to humidity changes since its refractive index is strongly humidity dependent. As a result, shifts occur in the resonance wavelength and there are also changes in output power. The un-coated MKR showed a sensitivity of 1.3 pm/%RH, in terms of the resonance wavelength, and a sensitivity of 0.0626 dB/%RH for the transmitted output power. The sensitivity increased greatly after the deposition of a porous TiO2 nanoparticle coating on the MKR. The TiO2-coated MKR showed an improved sensitivity of 2.5 pm/%RH, with respect to the resonance wavelength, and 0.0836 dB/%RH for the transmitted output power. This MKR sensor has the potential for use in a variety of humidity sensing applications. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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