Pulsed and cw laser oscillations in LiF:F^–_2 color center crystal under laser diode pumping

Basiev, Tasoltan T.; Vassiliev, S. V.; Konjushkin, Vasily A.; Gapontsev, Valentin

doi:10.1364/ol.31.002154

Cited by 16 publications

(3 citation statements)

References 3 publications

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“…The broad enhancement band in a range of 1-1.3 µm, high cross section of luminescence transition (~10 -17 cm 2 ), broad absorption band for pumping by lasers that irradiate near 1 µm, and high thermal conductivity make these crystals to be virtually ideal for application in rearrangeable lasers and lasers with mode synchronization. 7, 22 Since laser diodes with a radiation wavelength of 960-980 nm become accessible in the recent time, effi cient and compact solid state tunable lasers can be cre ated. These crystals have drawbacks: low mechanical strength that restricts the limiting powers of generating radiation.…”

Section: Spectral Luminescence and Generation Propertiesmentioning

confidence: 99%

Fluoride optical nanoceramics

et al. 2008

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The methods for preparation of highly transparent optical ceramics based on simple and complex fluoride compounds of elements of the first, second, and third Group in the Periodical system are considered. The use of precursors as nanopowders and processes of their self assembling on heating results in maximally homogeneous, transparent, and mechanically strong ceramics. The resulting calcium fluoride ceramics possess optical losses of 10 -2 -10 -3 cm -1 at 1.06 µm and shock resistance characterized by the fracture toughness К 1С = 4.7±0.3 MPa m 1/2 (for comparison, for a calcium fluoride single crystal К 1C = 1.5±0.15 MPa m 1/2 ). Regularities of the chemistry of fluoride nanopowders were considered in comparison with the oxide nanopowders: the fluorides are prone to hydrolysis, and powder nanoparticles precipitated from aqueous solutions have complex and heterogeneous (over the volume) chemical composi tion. The spectral luminescence properties of the ceramics activated by rare earth metals (Ce 3+ , Nd 3+ , Er 3+ , Yb 3+ ) or containing active color centers are presented. The generation properties of the lithium fluoride ceramics with the color centers and the ternary Ca-Sr-Yb fluoride during diode laser pumping are described.

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Section: Spectral Luminescence and Generation Propertiesmentioning

confidence: 99%

Fluoride optical nanoceramics

et al. 2008

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“…Кристаллы фторида лития (LiF) являются идеальными объектами для изучения фундаментальных явлений на уровне точечных дефектов [1][2][3][4][5][6][7][8], а также широко применяются в дозиметрии [9][10][11][12][13] и лазерной физике [14][15][16]. Особый интерес вызывают исследования, связанные с созданием микроструктур и устройств во фторидах щелочного металла высокоинтенсивными фемтосекундными лазерными импульсами [17][18][19][20][21][22].…”

Section: Introductionunclassified

Преобразования радиационно-наведенных молекулярных точечных дефектов и центров окраски в кристаллах LiF под воздействием света

Брюквина¹

2019

Физика Твердого Тела

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The effect of UV light and light pulses of the integral light of lamps on γ-irradiated LiF crystals with impurities of hydroxyl ions and magnesium were investigated. The optical absorption and luminescence of color centers at different stages bleaching depending on the exposure time of the crystal under UV light or from the number of light pulses were studied. IR spectra of molecular complexes with hydrogen bond and hydroxyl ions at different stages of bleaching are present. The transformation of complexes with a strong hydrogen bond in complexes with a weak hydrogen bond, and vice versa under the action of light are shown. It is presented as molecular complexes with hydrogen bond affect transformations color centers in the process of crystal bleaching.

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“…Among them, lasers with LiF: − F 2 CC crystals have attracted much attention during the last forty years [2][3][4][5][6][7][8]. LiF: − F 2 CC crystals have a large emission cross-section (~7 × 10 -17 cm 2 ) [9] and a high luminescence quantum efficiency (η ≈ 0.65)…”

Section: Introductionmentioning

confidence: 99%

High-repetition-rate widely tunable LiF : $\mathbf{\mathsf{F}}_\mathbf{\mathsf{2}}^{-}$ color center lasers

et al. 2016

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High-repetition-rate tunable LiF: color center lasers pumped by quasi-continuous-wave diode-side-pumped acousto-optically Q-switched Nd:YAG laser are demonstrated. Littrow-grating and Littman-grating tuning schemes are studied respectively. In the Littrow-grating scheme, the tuning range was 1085 nm to 1275 nm, and the maximal average output power was 275 mW. In the Littman-grating scheme, the tuning range was 1105.5 nm to 1215.5 nm, and the maximal average output power was 135 mW.

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Pulsed and cw laser oscillations in LiF:F^–_2 color center crystal under laser diode pumping

Cited by 16 publications

References 3 publications

Fluoride optical nanoceramics

Fluoride optical nanoceramics

Преобразования радиационно-наведенных молекулярных точечных дефектов и центров окраски в кристаллах LiF под воздействием света

High-repetition-rate widely tunable LiF : $\mathbf{\mathsf{F}}_\mathbf{\mathsf{2}}^{-}$ color center lasers

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