Red to blue up-conversion emission of Tm3+ ions in Yb3+-doped glass ceramic

Xu, Wenbin; Denis, J.P.; Özen, G.; Kermaoui, A.; Pellé, F.; Blanzat, B.

doi:10.1063/1.356002

Cited by 33 publications

(8 citation statements)

References 19 publications

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“…The effective polarization (P eff ) was calculated as P eff = Q(tL) −1 , where Q is the measured charge, t is the film thickness, and L is the total length of the finger pairs. [38][39][40] The effective remnant polarization (P r-eff ) was derived from the measured FE hysteresis curves (e.g. Fig.…”

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confidence: 99%

Multiferroic properties of uniaxially compressed orthorhombic HoMnO3 thin films

Shimamoto

Windsor

et al. 2016

Applied Physics Letters

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Multiferroic properties of orthorhombic HoMnO 3 (Pbnm space group) are significantly modified by epitaxial compressive strain along the a-axis. We are able to focus on the effect of strain solely along the a-axis by using an YAlO 3 (010) substrate, which has only a small lattice mismatch with HoMnO 3 along the other in-plane direction (the c-axis). Multiferroic properties of strained and relaxed HoMnO 3 thin films are compared with those reported for bulk, and are found to differ widely. A relaxed film exhibits bulk-like properties such as a ferroelectric transition temperature of 25 K and an incommensurate antiferromagnetic order below 39 K, with an ordering wave vector of (0 q b 0) with q b ≈ 0.41 at 10 K. A strained film becomes ferroelectric already at 37.5 K and has an incommensurate magnetic order with q b ≈ 0.49 at 10 K.

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confidence: 99%

Multiferroic properties of uniaxially compressed orthorhombic HoMnO3 thin films

Shimamoto

Windsor

et al. 2016

Applied Physics Letters

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“…Especially, with the development of diode lasers as a convenient pumping source, all-solid short-wavelength solid-state lasers in the ultraviolet (UV) to green spectral range based on rare earth doped materials have been intensively studied. [1][2][3][4] The Tm 3+ doped upconversion materials have attracted much attention because of their emissions in the range of visible to ultraviolet (UV) under near infrared (NIR) excitation. [5][6][7][8][9] In order to use the Tm 3+ doped upconversion materials in the all-solid short wavelength compact laser devices and achieve the purpose of device miniaturization, 10-18 the optical thin films were fabricated using pulsed laser deposition (PLD) method which is a developed technique to deposit nanoparticles or bulk materials on selected substrates.…”

Section: Introductionmentioning

confidence: 99%

Upconversion Luminescence Properties of Yb3+ and Tm3+ Codoped Amorphous Fluoride ZrF4–BaF2–LaF3–AlF3-NaF Thin Film Prepared by Pulsed Laser Deposition

He¹,

Qin²,

Zhao³

et al. 2014

j. nanosci. nanotech.

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The Yb3+ and Tm3+ co-doped 55.98ZrF4-28BaF2-2.5LaF3-4AlF3-7NaF-2.5YbF3-0.02TmF3 amorphous fluoride film was prepared by pulsed laser deposition. The spectroscopic properties and energy transfer analysis of this film were studies in detail. Ultraviolet and visible upconversion emissions were observed under the infrared excitation at 980 nm. In comparison with that of its target, the upconversion emissions of the film in the visible and ultraviolet range were greatly enhanced. The possible energy transfer mechanism of the emissions was given to understand the upconversion process. This kind of thin films has potential applications for the integrated optical waveguide amplifier and ultraviolet laser.

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“…[1][2][3][4]. In the past years, up-conversion emission of various glasses doped with Tm 3+ has been investigated [2,[5][6][7][8][9][10][11]. In all the cases, either red (650-680 nm) [2,[5][6][7] or infrared laser (750-1000 nm) [8][9][10][11] was used as an excitation light due to the favorable mechanisms.…”

Section: Introductionmentioning

confidence: 99%