Abstract
Investigations and use of nanoparticles (NPs) as photothermal (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 nanomedicine, and chemistry. Efficiency of applications of metallic NPs for laser and optical nanotechnology depends on plasmonic and thermophysical properties of NPs, characteristics of radiation, and surrounding medium. Here we present the results of comparative analysis of NP properties (plasmonic, thermooptical, and others) allowing selecting their parameters for thermoplasmonic and photonic applications. Plasmonic and thermooptical 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 thermophysical properties of NPs has been carried out. It was established that maximum value of thermooptical parameter (maximum NP temperature) can be achieved with the use of absorption efficiency factor of NP smaller than its maximum value.
Highlights
We present the results of comparative analysis of NP properties allowing selecting their parameters for thermoplasmonic and photonic applications
Recent advances in photothermal nanotechnology based on the use of nanoparticles (NPs) and optical radiation have been demonstrated for their great potential
We carry out complex investigation of the plasmonic and thermooptical properties of spherical metallic NPs for their interaction with optical radiation placed in some ambient medium
Summary
Recent advances in photothermal nanotechnology based on the use of nanoparticles (NPs) and optical (laser) radiation have been demonstrated for their great potential. There are many reasons for this interest including application of NPs in different fields, such as catalysis [1, 2], laser nanobiomedicine [3,4,5,6,7,8,9,10,11], nanooptics and nanoelectronics [12,13,14,15], laser processing of metallic NPs in nanotechnology [16,17,18,19,20,21,22,23], and light-to-heat conversion [24,25,26,27] Most of these technologies rely on the position and strength of the surface plasmon on a nanosphere and the fact that NP will absorb and scatter radiation energy well at resonance wavelength. We carry out complex investigation of the plasmonic and thermooptical properties of spherical metallic NPs for their interaction with optical (laser) radiation placed (embedded) in some ambient medium. We investigated the influence of the parameters of radiation, NP, and ambient medium on the properties of this interaction
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