Nanobiophotonik

Investigations and use of nanoparticles (NPs) as photo-thermal (PT) agents in laser and optical nanotechnology are fast growing areas of research and applications. The potential benefits of NPs applications include possibility for thermal imaging and treatment of materials containing of NPs, applications of NPs for light-to-thermal energy conversion, in catalysis, laser nano-medicine, and chemistry. Efficiency of applications of metallic NPs for laser and optical nanotechnology depends on plasmonic and thermo-physical properties of NPs, characteristics of radiation, and surrounding medium. Here, we present the results of comparative analysis of NP properties plasmonic, thermo-optical, and others) allowing selecting their parameters for thermo-plasmonic and photonic applications. Plasmonic and thermo-optical properties of several metallic (aurum, silver, platinum, cobalt, zinc, nickel, titanium, cuprum, aluminum, molybdenum, vanadium, and palladium) NPs are theoretically investigated and analysis of them is carried out. Investigation of the influence of NPs parameters (type of metal, radii, optical indexes, density, and heat capacity of NP material), characteristics of radiation (wavelength and pulse duration), and ambient parameters on plasmonic and thermo-physical properties of NPs has been carried out. It was established that maximum value of thermo-optical parameter (maximum NP temperature) can be achieved with the use of absorption efficiency factor of NP smaller than its maximum value.