Conditions changing for the surface plasmon resonance realization in optical sensors under the temperature influence
Faculty of Physics, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64/13, 01601, Kiev, Ukraine
Accepted: 4 May 2022
Published online: 13 May 2022
It is established that the water temperature effects the wavelength of surface plasmon resonance in the “prism—golden nano layer—water” structure. The range of this effect is 4 nm and lies in the range of 543.2–539.2 nm, which corresponds to the change in the incidence angle of the radiation flux in the range of 42.8°–41.9° (~ 1°). This effect, on the one hand, allows measuring the temperature of the dielectric (in this case water) in the absence of temperature induced by the flow. On the other hand, the temperature changes can determine the magnitude of the radiation flux. The maximum value of the radiation flux at which the temperature effect can be neglected was estimated. For an exposure duration of 60 s, it is 1 . For the same exposure, the possibility of creating a direct radiation-flux meter in the range of 1 ÷ 25 W/cm2 is shown.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022