Blue luminescence in YVO4 and KGd(WO4)2 crystals excited by CW 1064-nm radiation

Ходасевич, И. А.; Grabtchikov, A. S.; Корниенко, А. А.; Дунина, Е. Б.

doi:10.1134/s0030400x15110144

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…In contrast, light filament in YVO induced very strong broadband emission centered at ∼ 450 nm, which was first observed with excitation with nanosecond pulses in the visible range and was attributed to transitions within the vanadate (VO 3− 4 ) group [36]. More recently, strong bluish luminescence in YVO was observed with infrared continuous wave excitation [37], also noting a huge difference in luminescence intensities in YVO and KGW, which is still missing a plausible explanation. The dynamics of spectral broadening under identical focusing conditions were also measured in sapphire and YAG crystals, allowing straightforward comparison of SC generation performances in all tested materials.…”

Section: Spectral Measurementsmentioning

confidence: 97%

KGW and YVO: two excellent nonlinear materials for high repetition rate infrared supercontinuum generation

Marciulionyte,

Reggui,

Tamosauskas

et al. 2023

Preprint

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We present an experimental investigation of supercontinuum generation in potassium gadolinium tungstate (KGW) and yttrium vanadate (YVO) crystals pumped with 210 fs, 1030 nm pulses from an amplified Yb:KGW laser operating at 2 MHz repetition rate. We demonstrate that compared to commonly used sapphire and YAG, these materials possess considerably lower supercontinuum generation thresholds, produce remarkable red-shifted spectral broadenings (up to 1700 nm in YVO and up to 1900 nm in KGW) and exhibit less bulk heating due to energy deposition during filamentation process. Moreover, durable damage-free performance was observed without any translation of the sample, suggesting that KGW and YVO are excellent nonlinear materials for high repetition rate supercontinuum generation in the near and short-wave infrared spectral range.

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Section: Spectral Measurementsmentioning

confidence: 97%

KGW and YVO: two excellent nonlinear materials for high repetition rate infrared supercontinuum generation

Marciulionyte,

Reggui,

Tamosauskas

et al. 2023

Preprint

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“…ч.". Ранее было обнаружено, что следовые количества ионов Er 3+ и Tm 3+ , не превышающие 10 −5 −10 −6 wt.%, являются причиной возникновения ап-конверсии в видимом спектральном диапазоне в кристаллах YVO 4 : Nd 3+ и KGd(WO 4 ) 2 [8,9]. Кроме того, для ряда германиевых соединений, допированных неодимом и гольмием, показано, что максимальная интенсивность люминесценции в диапазоне длин волн 2−3 µm наблюдается при следовых концентрациях ионов Ho 3+ [10][11][12][13].…”

Section: Introductionunclassified

Люминофор Ближнего И Коротковолнового Ик-Диапазона На Основе Ниобата Литий-Лантана Со Структурой Кубического Граната

Бакланова¹,

Липина²,

Максимова³

et al. 2019

Физика Твердого Тела

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Cubic garnets activated by neodymium and holmium, Li_6CaLa_2Nb_2O_12:Nd^3+,Ho^3+, were obtained by solid-state method. The main regularities of changes in the luminescence properties of Li_6C-aLa_2Nb_2O_12:Nd^3+,Ho^3+ solid solutions in the visible, near-IR, and short-wave IR ranges under 808 nm laser diode radiation are determined. The energy transfer mechanism between active centers, involving the participation of Nd^3+ ions as sensitizers for the luminescence of Ho^3+ ions, is proposed. Low phonon energy, high luminescence intensity in the range of 2.0–3.0 μm, and weak up-conversion luminescence in the region of 450–780 nm make it possible to consider the cubic lithium–lanthanum niobates Li_6CaLa_2Nb_2O_12:Nd^3+,Ho^3+ as promising phosphors of the short-wave IR range.

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Upconversion of IR Radiation in a KGd(WO4)2 Crystal on Erbium and Thulium Ions in Trace Concentrations: Change of Excitation Schemes and Energy Transfer Through the Crystal Lattice

et al. 2018

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Blue luminescence in YVO4 and KGd(WO4)2 crystals excited by CW 1064-nm radiation

Cited by 8 publications

References 30 publications

KGW and YVO: two excellent nonlinear materials for high repetition rate infrared supercontinuum generation

KGW and YVO: two excellent nonlinear materials for high repetition rate infrared supercontinuum generation

Люминофор Ближнего И Коротковолнового Ик-Диапазона На Основе Ниобата Литий-Лантана Со Структурой Кубического Граната

Upconversion of IR Radiation in a KGd(WO4)2 Crystal on Erbium and Thulium Ions in Trace Concentrations: Change of Excitation Schemes and Energy Transfer Through the Crystal Lattice

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