Abstract
We analyze the opportunities provided by the plasmonic nanoparticles inserted into the bulk of a transparent medium to modify the material by laser light irradiation. This study is provoked by the advent of photo-induced nano-composites consisting of a typical polymer matrix and metal nanoparticles located in the light-irradiated domains of the initially homogeneous material. The subsequent irradiation of these domains by femtosecond laser pulses promotes a further alteration of the material properties. We separately consider two different mechanisms of material alteration. First, we analyze a photochemical reaction initiated by the two-photon absorption of light near the plasmonic nanoparticle within the matrix. We show that the spatial distribution of the products of such a reaction changes the symmetry of the material, resulting in the appearance of anisotropy in the initially isotropic material or even in the loss of the center of symmetry. Second, we analyze the efficiency of a thermally-activated chemical reaction at the surface of a plasmonic particle and the distribution of the product of such a reaction just near the metal nanoparticle irradiated by an ultrashort laser pulse.
Highlights
A plasmonic particle inserted in a transparent material can enhance the effect of laser radiation
We consider the opportunities provided by plasmonic nanoparticles inserted into the bulk of transparent media to modify the material by means of the laser light irradiation
The plasmonic nanoparticles are formed due to laser irradiation of the initially homogeneous material containing precursor molecules by a self-organization process. This process significantly changes the optical property of the medium
Summary
A plasmonic particle inserted in a transparent material can enhance the effect of laser radiation. It should be noted that in both cases of long and short pulse irradiation, the effect of electron emission from the laser-irradiated particle into the surrounding medium could occur This effect is considered in detail in [1]. After the UV-mediated reduction of those molecules, the extracted metal atoms form an oversaturated solid solution; the plasmonic particles appear as nuclei of the new phase [11] These nanocomposites are products of the light-material interaction. We consider the material heating caused by This absorption in comparison with the heating by the light directly absorbed by the particle and analyze the distribution of the product of a thermally-activated chemical reaction just near the metal nanoparticle irradiated by the laser pulse. This study aims at developing the laser-induced production of 3D nanoplasmonic systems where the formation of photo-induced nanocomposites is only the first step
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
