¹Institute of Materials of SRC “Carat”, 202 Stryjska str., 79031 Lviv, Ukraine
²O.G. Vlokh Institute of Physical Optics, 23, Dragomanov str., 79005 Lviv, Ukraine
³Jan Dlugosz University, 13/15 al. Armii Krajowej, Czestochowa, 42200, Poland
⁴N.S. Kurnakov Institute of General and Inorganic Chemistry, 31, Leninsky Pr., Moscow, 199991, Russia
⁵Lviv Polytechnic National University, 12, Bandera str., 79013 Lviv, Ukraine
^* The corresponding author e-mail: olehshpotyuk@yahoo.com

Abstract. Principal difference in origin of high-order optical non-linearities caused by metallic nanoparticles such as Cu, Ag and Au embedded destructively in oxide- and chalcogenide-type glassy matrices has been analyzed from the viewpoint of semi-empirical chemical bond approach. The numerical criterion has been introduced to describe this difference in terms of mean molar bond energies character for chemical interaction between unfettered components of destructed host glassy matrix and embedded guest atoms. It has been shown that “soft” covalent-bonded networks of chalcogenide glasses of As/Ge–S/Se systems differ essentially from glass-forming oxides like silica by impossibility to accommodate agglomerates of metallic nanoparticles. In contrast, such nanostructurized entities can be well stabilized in Cu-, Ag- or Au-embedded oxide glasses in full accordance with numerous experimental evidences. Recent unsubstantiated speculations trying to ascribe this ability to fully-saturated covalent matrices of chalcogenide glasses like As2S3 are analyzed and criticized as the misleading and inconclusive ones.

Keywords: chalcogenide glasses, glass-forming oxides, surface plasmon resonance, nanoparticle, chemical bond.

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