LaF3:Er,Yb doped sol–gel polymeric optical waveguide amplifiers

Bo, Shuhui; Wang, J.; Zhao, Hongyan; Ren, Huaijin; Wang, Q.; Xu, Guangran; Zhang, X.; Liu, X.; Zhang, Zhen

doi:10.1007/s00340-008-2938-1

Cited by 26 publications

(17 citation statements)

References 21 publications

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“…The observed UC light can be fine-tuned in a wide range of pump power densities. 21 For applications in flat-panel displays, data storage, lighting, integrated optics, telecommunications, biolabelling and fluorescent imaging, organic-decorated Ln 3+ -doped inorganic NPs need to be assembled in transparent composite monoliths or thin films based on polymers 14,22 or organic-inorganic hybrid structures, such as siloxane-derived hosts, 20,[23][24][25][26] and sequential deposition of inorganic and organic species onto a silicon wafer. 27 In this latter example, a prototypical two-dimensional (2D) rewritable optical storage medium (with potential high-density recording capacity) has been successfully constructed by the assembly of NaYF 4 : Yb,Er UC NPs and diarylethene (as the photochromic organic modulator).…”

Section: Hybrids As Phosphorsmentioning

confidence: 99%

Progress on lanthanide-based organic–inorganic hybrid phosphors

et al. 2011

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Research on organic-inorganic hybrid materials containing trivalent lanthanide ions (Ln 3+ ) is a very active field that has rapidly shifted in the last couple of years to the development of eco-friendly, versatile and multifunctional systems, stimulated by the challenging requirements of technological applications spanning domains as diverse as optics, environment, energy, and biomedicine. This tutorial review offers a general overview of the myriad of advanced Ln 3+ -based organic-inorganic hybrid materials recently synthesised, which may be viewed as a major innovation in areas of phosphors, lighting, integrated optics and optical telecommunications, solar cells, and biomedicine.

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Section: Hybrids As Phosphorsmentioning

confidence: 99%

Progress on lanthanide-based organic–inorganic hybrid phosphors

et al. 2011

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“…In the past two decades, erbium-doped fiber amplifiers have been extraordinarily successful because the infrared emission wavelength of the Er 3+ ion corresponds to the low-loss telecommunication window in the wavelength range approximately 1530 nm in optical communication123. With continued progress in information technology, the miniaturization of such fiber amplifiers is of considerable interest for the development of on-chip photonic integration and chip-scale optical communication.…”

mentioning

confidence: 99%

High-gain polymer optical waveguide amplifiers based on core-shell NaYF4/NaLuF4: Yb3+, Er3+ NPs-PMMA covalent-linking nanocomposites

Zhang

Wang

et al. 2016

Sci Rep

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Waveguide amplifiers have always been significant key components for optical communication. Unfortunately, the low concentration of rare earth ions doped in the host material and the inadequate optimization of the waveguide structure have been the common bottleneck limitations. Here, a novel material, NaYF4/NaLuF4: 20% Yb3+, 2% Er3+ nanoparticle-Polymeric Methyl Methacrylate covalent-linking nanocomposite, was synthesized. The concentrations of Er3+ and Yb3+ doping increased an order of magnitude. Under a 980 nm laser excitation, highly efficient emission at 1.53 μm was obtained. The characteristic parameters of the single mode waveguide were carefully designed and optimized by using a finite difference method. A formulized iteration method is presented for solving the rate equations and the propagation equations of the EYCDWA, and both the steady state behavior and the gain were numerically simulated. The optimal Er3+ and Yb3+ concentrations are 2.8 × 1026 m−3 and 2.8 × 1027 m−3, and the optimal waveguide length is 1.3 cm. Both theoretical and experimental results indicated that, for an input signal power of 0.1 mW and a pump power of 400 mW, a net gain of 15.1 dB at 1530 nm is demonstrated. This result is the highest gain ever reported in polymer-based waveguide amplifiers doped with inorganic Er3+-Yb3+ codoped nanocrystals.

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“…This anti-Stokes process therefore has an iPLQY dependent on the irradiance of excitation with a maximum efficiency of 50% (by definition, due to at least two photons absorbed per photon emitted). Although many materials exhibit this behavior, such as transition metal and lanthanide ions, here we will focus on the latter due to their broad use in many fields [25][26][27] and especially solar energy. 9,12 Lanthanide (Ln 3+ ) materials with very discrete energy levels have narrow and also weak absorption cross sections due to their parity forbidden transitions (Laporte rule) and hence their optical properties are often defined at the strongest resonant wavelength of excitation.…”

Section: B Determination Of Iplqymentioning

confidence: 99%

Measurement procedure for absolute broadband infrared up-conversion photoluminescent quantum yields: Correcting for absorption/re-emission

MacDougall

Ivaturi

Marqués-Hueso

et al. 2014

Review of Scientific Instruments

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The internal photoluminescent quantum yield (iPLQY)--defined as the ratio of emitted photons to those absorbed--is an important parameter in the evaluation and application of luminescent materials. The iPLQY is rarely reported due to the complexities in the calibration of such a measurement. Herein, an experimental method is proposed to correct for re-emission, which leads to an underestimation of the absorption under broadband excitation. Although traditionally the iPLQY is measured using monochromatic sources for linear materials, this advancement is necessary for nonlinear materials with wavelength dependent iPLQY, such as the application of up-conversion to solar energy harvesting. The method requires an additional measurement of the emission line shape that overlaps with the excitation and absorption spectra. Through scaling of the emission spectrum, at the long wavelength edge where an overlap of excitation does not occur, it is possible to better estimate the value of iPLQY. The method has been evaluated for a range of nonlinear material concentrations and under various irradiances to analyze the necessity and boundary conditions that favor the proposed method. Use of this refined method is important for a reliable measurement of iPLQY under a broad illumination source such as the Sun.

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LaF3:Er,Yb doped sol–gel polymeric optical waveguide amplifiers

Cited by 26 publications

References 21 publications

Progress on lanthanide-based organic–inorganic hybrid phosphors

Progress on lanthanide-based organic–inorganic hybrid phosphors

High-gain polymer optical waveguide amplifiers based on core-shell NaYF4/NaLuF4: Yb3+, Er3+ NPs-PMMA covalent-linking nanocomposites

Measurement procedure for absolute broadband infrared up-conversion photoluminescent quantum yields: Correcting for absorption/re-emission

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