Third-order nonlinearity in Ag-nanoparticles embedded 56GeS2–24Ga2S3–20KBr chalcohalide glasses

On the energetic criterion for destructive clustering of metallic nanoparticles in chalcogenide and oxide glassy matrices

“…Another example concerns ignored host–guest interaction due to looser structures of some glassy targets. Thus, in chalcogenide 56GeS 2 –24Ga 2 S 3 –20KBr glass , the implanted Ag NPs (10 16 –2 × 10 17 ions cm −2 doses) are agglomerated in low‐density inner spaces, which allows relatively large clusters reaching few hundred nanometer. The enhanced third‐order optical nonlinearities of such Ag‐ion‐implanted glasses as compared with nonimplanted ones demonstrate a complicated dependence on implantation doses and sizes of NPs .…”

Na2O–B2O3–SiO2 glass doped with In and Cu2In nanoparticles prepared by sol–gel method

“…4(a)). When the size of nanoparticles is smaller than 40 nm, the nanoparticles will absorb energy due to the interband transitions, surface dispersion or scattering of the "free" electrons [28]. In this case, the displacement of charges is homogeneous and yields a dipolar charge distribution on the surface, which induces a local electric field to enhance the third-order nonlinearity of glass with small spherical nanoparticles [28].…”

Metallic nanoparticles (Cu, Ag, Au) in chalcogenide and oxide glassy matrices: comparative assessment in terms of chemical bonding

“…Other example concerns the case, when chemical host-quest interaction can be ignored due to looser (inhomogeneous) structures of some glassy-like targets. Such research can be well exemplified by experiments on Ag-ions implantation in chalcohalide matrices performed by Liu et al [42,43]. It was found that in 56GeS 2 -24Ga 2 S 3 -20KBr glass Ag ions embedded under implantation with varied doses from 10 16 to 2⋅10 17 ions/cm 2 can be agglomerated presumably in inner spaces of lower densities, which allow appearance of relatively large MNPs agglomerates reaching in sizes even a few hundred nanometers.…”

“…It was found that in 56GeS 2 -24Ga 2 S 3 -20KBr glass Ag ions embedded under implantation with varied doses from 10 16 to 2⋅10 17 ions/cm 2 can be agglomerated presumably in inner spaces of lower densities, which allow appearance of relatively large MNPs agglomerates reaching in sizes even a few hundred nanometers. The enhanced thirdorder optical non-linearities in these nanostructurized chalcohalide glasses were shown to correlate strongly with ion implantation doses and geometrical sizes of agglomerated Ag MNPs [42,43]. Recently [44], it was shown that similar results could be achieved under Ag ions implantation in melt-quenched 72GeS 2 -18Ga 2 S 3 -10CdS glass, the typical sizes of Ag MNPs being ranged from ∼90 nm (at 10 16 ions/cm 2 dose) to 300 nm (at 2⋅10 17 ions/cm 2 dose).…”