Modelling of surface plasmon resonance sensor for detection of mass concentration of ethanol and methanol in a binary mixture |
| |
| Affiliation: | Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi 221005, UP, India;Department of Urology, UCSF Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, 1600 Divisadero Street, A631, San Francisco, CA 94115, USA;Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi 221005, U.P., India;Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, A-10, Sector-62, Noida 201307, India;Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, A-10, Sector-62, Noida 201307, India;Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, A-10, Sector-62, Noida, 201307, India;Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, A-10, Sector-62, Noida 201307, India |
| |
| Abstract: | Modelling of a surface plasmon resonance sensor for detection of ethanol or methanol content in water is presented. The reflectivities of these sensors are derived using transfer matrix method and hence the corresponding sensitivity and detection accuracy are obtained in the presence of high index overlayer, like silicon and chalcogenide. It is observed that the resonant wavelength of surface plasmon resonance sensor is shifted toward higher wavelength with increase of refractive index and thickness of overlayer. Hence, by adjusting their values, the desired spectral operation range of this sensor is obtained. The sensitivity of this sensor with silicon overlayer is larger than the chalcogenide overlayer but at the same time detection accuracy is smaller. This sensor can be used to detect the mass concentration of ethanol, methanol and other similar materials. A method to obtain the percentage mass concentration of ethanol is discussed. |
| |
| Keywords: | Surface plasmon resonance sensor Ethanol sensitivity Methanol sensitivity High refractive index overlayer |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
