A raster microscope

Зверев, В. А.; Karaseva, I. A.; Tochilina, T. V.

doi:10.1364/jot.69.000663

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It crystallizes in a cubic fcc lattice, SSG Fm-3m. SrF 2 crystals, transparent in the UV, visible and IR ranges, are photonics materials [1]. Strontium fluoride occurs in nature as a rare mineral strontiofluorite [2].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

Abiev,

Zdravkov,

Kudryashova

et al. 2024

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

The technique of micromixing was used for synthesis of SrF 2 nanopowders in a microreactor with intensely swirling flows. The chemical reaction between aqueous solutions of strontium nitrate (C(Sr(NO 3 ) 2 ) = 0.15 -0.45 M) and potassium fluoride (C(KF) = 0.3 -0.9 M) was realized in a microreactor with intensely swirling flows with reagent consumption 1.5 -3.5 L/min. Colloidal solutions were obtained, during the settling of which SrF 2 powders were isolated without crystallographic faceting. An increase in the rate of reagent flow has negligible effect on the size of coherent scattering regions D, while an increase in the concentration of solutions leads to an increase in D from ∼ 20 to ∼ 30 nm. KEYWORDS strontium fluoride, precipitation, chemical reaction, micromixing ACKNOWLEDGEMENTS This work was done as a part of State assignment of the Institute of Silicate Chemistry (Project No.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

Abiev,

Zdravkov,

Kudryashova

et al. 2024

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

show abstract

“…Alkaline earth fluorides are transparent in a wide spectral range and apply as a structural material for the IR, visible, UV, and VUV spectral ranges [1]. BaF 2 crystals are promising optical materials as a heavy fast scintillator (the density value is 4.8 g/cm 3 ) and high level of radiation-resistant parameters.…”

Section: Introductionmentioning

confidence: 99%

Spectral and Cathodoluminescence Decay Characteristics of the Ba1−xCexF2+x (x = 0.3–0.4) Solid Solution Synthesized by Precipitation from Aqueous Solutions and Fusion

Kuznetsov,

Yasyrkina,

Valiev

et al. 2023

Photonics

View full text Add to dashboard Cite

Single-phase samples of the Ba1−xCexF2+x solid solution (x = 0.3–0.4) were synthesized by directional crystallization in the form of single crystals and by co-precipitation from aqueous nitrate solutions using potassium fluoride as a fluorinating agent in the form of nanopowders. The cathodoluminescence of the pressed powder samples was studied in comparison with the BaF2: Ce single crystals in 250–460 nm (2.7–5 eV) spectral range upon excitation by an electron accelerator. The cathodoluminescence spectra of the samples revealed a wide band in the range of 3.0–4.0 eV, which consists of two typical components of Ce3+ with decay time 23 ns in the case of single crystals and three decay times 27 ns, 140–170 ns, and ~600 ns in the case of pressed powders. The decay time of the short-wavelength component (27 ns) in the case of pressed powders is close to the lifetime of the excited state of the Ce3+ ion. The developed X-ray phosphors can be applied for embedding in diamonds for diamond–nanoparticle composite preparation.

show abstract

“…На рис. 2 соответствующие этим материалам точки располагаются удаленно от нормальной прямой [16,22], в основном в нижней области графика слева. При синтезе трехлинзового апохромата с помощью разработанной программы целесообразно "фиксировать" любой материал каким-нибудь особым стеклом или материалом с особым ходом дисперсии для существенного ускорения синтеза.…”

unclassified

Three-lens six-color superachromat of a wide spectral range

Nguyen¹,

Бахолдин²

2023

Izv. vysš. učebn. zaved., Priborostr.

View full text Add to dashboard Cite

Исследованы оптические системы шестицветных суперахроматов, обладающих исправленным хроматизмом положения в широком спектральном диапазоне. Разработана программа автоматического синтеза трехлинзовых объективов с исправленным хроматизмом положения в широком спектральном диапазоне. Синтез апохроматов выполнен на основе теории аберрации третьего порядка. Применен метод полного перебора рассчитанных вариантов объективов из заданного пользователем каталога материалов. Разработана двухступенчатая система ранжирования рассчитанных объективов, учитывающая качество изображения осевой точки и чувствительность объектива к погрешности изготовления. Найдены решения для трехлинзовых шестицветных суперахроматов в спектральном диапазоне 365-1000 нм. Приведены конструктивные параметры нескольких интересных вариантов. Представленные апохроматы и суперахроматы могут служить объективами телескопических систем или коллиматоров.

show abstract

A raster microscope

Cited by 4 publications

References 0 publications

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows

Spectral and Cathodoluminescence Decay Characteristics of the Ba1−xCexF2+x (x = 0.3–0.4) Solid Solution Synthesized by Precipitation from Aqueous Solutions and Fusion

Three-lens six-color superachromat of a wide spectral range

Contact Info

Product

Resources

About