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This study presents a theoretical and experimental investigation of three distinct surface plasmon resonance (SPR) sensor configurations, evaluating their sensitivity and practical applications. The first configuration utilizes a commercially available SPR sensor, employing a coupling prism integrated with a thin gold layer in the well-established Kretschmann-Raether configuration for SPR excitation. The second configuration features an advanced design, incorporating a coupling prism combined with an optical multi...

Water mist systems are increasingly used in a wide range of applications. These systems play an important role in fire suppression, firefighting, and generally in combating the effects of fire. Water has the ability to reduce ambient, flame and fuel temperatures. It is also capable of wetting the fuel and preventing the spread of flames to unburned fuel. It has the ability to displace oxygen and combustible gases from an area, reduce the spread of radiant heat, or trap toxic or other particles from smoke. The effe...

Temperature affects the number of water properties. Density, specific heat capacity, surface tension and more change with temperature. The size of the water droplets has strong impact on the shielding of radiant heat or the ability to extinguish and suppress fires. Determining the droplet size distribution of water mist is used in wide range of industries, in fire protections, spray technology, pharmaceuticals or automotive industry. The work deals with the measurement of the droplet size distribution of eight sel...

A chemical sensor of refractive index variations, which possesses prescribed resolution, is designed, implemented and tested. Enhancement of coupling forces by the Bloch surface waves is achieved by incorporating a one-dimensional (1-D) photonic crystal (PC) into the classical Kretschmann arrangement of surface plasmon resonance. The numerical optimization approach was used to establish geometrical parameters of the photonic crystal with prescribed material constituents. The number of layers, their thicknesses, an...