Chloride photo-thermo-refractive glasses

Dubrovin, Victor; Ignatiev, Alexander; Никоноров, Н. В.

doi:10.1364/ome.6.001701

Cited by 25 publications

(21 citation statements)

References 26 publications

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“…Для формирования наночастиц металлов в оптических материалах может быть использован ряд методов. Наночастицы металлов могут быть сформированы в стеклах, содержащих ионы металла, непосредственно при его синтезе в восстановительных условиях [13], методом ионной имплантации [14] или ионного обмена [15] с последующей термообработкой, методом фототермоиндуцированной кристаллизации [13,16], лазерным облучением с последующей термообработкой стекла [6], а также электронно-лучевым методом [17][18][19][20][21]. Достоинством последнего метода является то, что наночастицы металла диаметром 5−10 nm могут быть сформированы в стекле локально, в том числе в нанометровых масштабах.…”

Section: Introductionunclassified

Формирование Наночастиц Натрия И Калия При Локальном Электронном Облучении Щелочно-Галоидных Кристаллов

Сидоров¹,

Юрина²,

Подсвиров³

2019

Журнал Технической Физики

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It is shown experimentally that during local electron irradiation of NaCl, KCl and KBr crystals by electrons with energy 50 keV spherical metal nanoparticles of sodium and potassium with plasmon resonances in visible spectral region are formed. Optical density spectra of crystals after electron irradiation are presented. By computer simulation the possibility of solid or liquid state of nanoparticles is studied, as well as interference effects, which appear in the irradiated zone of crystals.

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Section: Introductionunclassified

Формирование Наночастиц Натрия И Калия При Локальном Электронном Облучении Щелочно-Галоидных Кристаллов

Сидоров¹,

Юрина²,

Подсвиров³

2019

Журнал Технической Физики

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“…Mechanisms of photochemical reactions and subsequent nanocrystallization in PTR glasses were studied in detail in refs. . PTR glass is typically synthesized in air atmosphere that is why polyvalent ions, such as cerium and antimony, are present in PTR glass in both valence states Ce 3+ /Ce 4+ and Sb 3+ /Sb 5+ .…”

Section: Introductionmentioning

confidence: 99%

“…According to refs. , the heat treatment of UV‐irradiated PTR glass at temperatures below the glass transition one results in freeing the previously trapped photoelectrons by antimony [Sb 5+ ] − centers

{[{Sb}^{5 +}]}^{-} \to {Sb}^{5 +} + {normale}^{-}

…”

Section: Introductionmentioning

confidence: 99%

Photo‐Thermo‐Refractive Glasses Doped with Silver Molecular Clusters as Luminescence Downshifting Material for Photovoltaic Applications

Sgibnev

Cattaruzza

Dubrovin

et al. 2018

Part & Part Syst Charact

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Silver nanostructures, including molecular clusters and plasmonic nanoparticles, attract much attention due to their unique optical properties and potential applications in various fields. Glasses doped with silver molecular clusters are known to possess bright luminescence under UV excitation, which opens up prospects of using the glasses as solar spectral converters to overcome poor spectral response for most of photovoltaic cells in the short‐wavelength region. In this study, silver molecular clusters are formed in photo‐thermo‐refractive glass matrix both by UV irradiation and by Na+↔Ag+ ion exchange and optically characterized. Photo‐thermo‐refractive glasses doped with silver molecular clusters, independently on silver introduction method, are shown to demonstrate broad absorption in the UV, intense white emission under excitation at 360 nm, and high photoluminescence quantum yield that meet requirements for luminescence downshifting materials. Despite this, only photo‐thermo‐refractive glass with silver molecular clusters uniformly distributed in the glass volume enhances the output power of a silicon photovoltaic cell, thus showing the potential for future application of photo‐thermo‐refractive glasses in photovoltaics, particularly in case of further experiments.

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“…We have recently proposed, synthesized and characterized a novel PTR glass composition, which provides positive refractive index change [9,10]. X-ray diffraction analysis revealed the precipitation of the NaAgCl nanocrystalline phase which is responsible for the positive refractive index change with magnitude of as high as 8.7 × 10 −4 [9,11]. It has been shown that this glass open a way to fabricate the volume mix type Bragg gratings, which possess both refractive index and absorption coefficient modulation.…”

Section: Introductionmentioning

confidence: 99%

“…Since the modulation of the absorption in the grating fringes originates from the strong surface plasmon resonance of silver nanoparticles (AgNPs) [9,12], it can be suppressed by photodestruction of the AgNPs. This process was studied extensively during last two decades in different glass matrix including classic PTR glass [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Volume Bragg gratings in chloride photo-thermo-refractive glass after femtosecond laser bleaching

Klyukin

Krykova

Ivanov

et al. 2017

Opt. Mater. Express

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We report on the optical properties of volume Bragg gratings in chloride photo-thermorefractive glass after femtosecond laser bleaching. We show experimentally that irradiation of the gratings with femtosecond laser pulses can expand their transmission into the whole visible range without dramatic decrease of diffraction efficiency. The mechanism of glass bleaching is considered and modulation of refractive index is described in terms of the coupled wave theory for mixed volume Bragg gratings.

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Chloride photo-thermo-refractive glasses

Cited by 25 publications

References 26 publications

Формирование Наночастиц Натрия И Калия При Локальном Электронном Облучении Щелочно-Галоидных Кристаллов

Формирование Наночастиц Натрия И Калия При Локальном Электронном Облучении Щелочно-Галоидных Кристаллов

Photo‐Thermo‐Refractive Glasses Doped with Silver Molecular Clusters as Luminescence Downshifting Material for Photovoltaic Applications

Volume Bragg gratings in chloride photo-thermo-refractive glass after femtosecond laser bleaching

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