Formation of copper nanocrystals in photochromic glasses under electron irradiation and heat treatment

Podsvirov, O. A.; Сидоров, А. И.; Tsekhomskii, V. A.; Vostokov, A. V.

doi:10.1134/s1063783410090192

Cited by 28 publications

(4 citation statements)

References 3 publications

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“…Metal nanoparticles (Ag, Au, Cu, Na, K, Li etc.) can be formed locally under the surface of metal-containing glasses and crystals [3][4][5][6][7]. Optical and plasmonic waveguides can be written by scanning electron beam on glass or crystal surfaces [3,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

et al. 2021

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Structural changes in silica glass, produced by electron irradiation, with electrons energies of 50 keV and doses of 5–80 mC/cm2 were studied by Raman spectroscopy in frequency ranges of 300–550 and of 700–1500 cm–1. It is shown that for irradiation doses less than 5 mC/cm2 the decrease of siloxane rings concentration in glass takes place. The further increase of dose results in the increase of siloxane rings concentration in glass network after irrsdiation. And for doses of more than 40 mC/cm2 the whole destruction of glass structure and its structural units takes place. The obtained results for silica glass were compared with similar results for crystalline quartz.

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Section: Introductionmentioning

confidence: 99%

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

et al. 2021

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“…The methods are based on local variations in the com position, structure, or internal mechanical stress in glass that lead to a local increase in the refractive index. Electron beam irradiation of sodium silicate glasses that contain silver or copper ions results in the generation of the negative space charge in the surface glass layer and the consequent field migration of mobile positive metal ions (Ag + or Cu + ) from the bulk to the surface [5][6][7]. Such a redistribution of metal ions must lead to an increase in the refractive index in the surface layer (i.e., formation of optical waveguide).…”

Section: Introductionmentioning

confidence: 99%

Specific features of the formation of optical waveguides in silicate glass at high energy and doze of electron irradiation

2014

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The formation of an optical waveguide in silicate glass that contains alkali metal ions is experi mentally studied under electron irradiation at an energy of 50 keV and a doze of 25-50 mC/cm 2 . A gradient waveguide with a maximum variation in the refractive index of 0.01-0.04 is formed in the glass due to irradi ation. It is demonstrated that a variation in the refractive index results from both field migration of alkali metal ions to the region of negative space charge and structural modifications in the glass related to the destruction of glass structure by high energy electrons.

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“…Nowadays, different types of technologies have been employed to enhance optical non-linearities in MNPs-embedded glasses, which include thermalelectrical and optical poling, controllable nucleation and crystallization at nano-and microscales, quenching, laser-and/or electron-driven precipitation of metal ions combined with further heat treatment, as well as ionbeam irradiation (ion implantation) [7,[11][12][13][14][15]. Noteworthy, in view of principally different chemistry, not all of these methods are equally suitable for GFO and ChG.…”

Section: Introductionmentioning

confidence: 99%

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

Shpotyuk¹

2017

Semicond. Phys. Quantum Electron. Optoelectron.

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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 semiempirical 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 Auembedded 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 As 2 S 3 are analyzed and criticized as the misleading and inconclusive ones.

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Formation of copper nanocrystals in photochromic glasses under electron irradiation and heat treatment

Cited by 28 publications

References 3 publications

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

Specific features of the formation of optical waveguides in silicate glass at high energy and doze of electron irradiation

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

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