Photon avalanche upconversion in rare earth laser materials

Joubert, M.-F.

doi:10.1016/s0925-3467(98)00043-3

Cited by 415 publications

(151 citation statements)

References 77 publications

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“…9 is photon avalanche (PA), which presents some unusual characteristics [133,134] in that nonresonant GSA leads to strong upconverted emission. In Fig.…”

Section: Photon Avalanchementioning

confidence: 99%

Lanthanide Luminescence in Solids

Tanner

2010

Springer Series on Fluorescence

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A tutorial introduction to the spectra of lanthanide ions is given. The chapter begins with a brief comparison of luminescence of lanthanide ions (Ln 3+ ) in the solid, liquid, and gas phases. Then a description of the importance of nonradiative versus radiative processes is made. The various types of transition of lanthanide ions encountered are then introduced: 4f N -4f N ; 4f N -4f NÀ1 5d; charge transfer; host band-to-band; and defect site or impurity transitions. Reference is briefly made to the spectra of dipositive ions. The luminescence of lanthanide ions in non-lanthanide hosts is examined, and the importance of locating the relative positions of Ln 3+ energy levels relative to the host band gap is stressed. Some of the various upconversion phenomena, including second harmonic generation, twophoton absorption, ground state/excited state absorption, energy transfer upconversion, and photon avalanche, are then described with reference to Ln 3+ and Ln 3+ -TM n+ (transition metal) systems. The experimental distinctions of which particular process is operative in a given system are explained by considering the power, concentration, and lifetime dependences, and the upconversion excitation spectrum. Some applications of lanthanide luminescence are briefly reviewed and a mention of the luminescence in nanomaterials is also included.

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“…9 is photon avalanche (PA), which presents some unusual characteristics [133,134] in that nonresonant GSA leads to strong upconverted emission. In Fig.…”

Section: Photon Avalanchementioning

confidence: 99%

Lanthanide Luminescence in Solids

Tanner

2010

Springer Series on Fluorescence

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“…was calculated taking to 10 1o0 account "? parameters from 4, Sa =0,3393 and 3,5824 for the 5 Fig. 2.…”

Section: Resultsmentioning

confidence: 99%

<title>Stokes and anti-Stokes luminescence in LiTaO<formula><inf><roman>3</roman></inf></formula>:Ho</title>

et al. 2001

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The paper deals with the excitation and decay of excited states of holmium in LiTaO 3 single crystals. Particular attention is paid to processes governing a population build up on the 5 S 2 and 517 metastable states whose quantum efficiencies are sufficiently high to be considered as initial levels for a laser transition. We observed for the first time, to our knowledge, an efficient conversion of the 647.1 nm light of a krypton ion laser into green luminescence in the material studied. Based upon analysis of excited state relaxation dynamics it is concluded that the mechanism involved is the excited state absorption from the long lived '17 level. Efficient single wavelength excitation is due to coincidence of transition energies of the ground state absorption and excited state absorption.

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“…For its background of application in future generations of photonic data communication, conversion, and storage devices, upconversion materials had been studied extensively in the past three decades [1][2][3][4][5][6]. The upconversion mechanisms consist of three kinds of processes: energy transfer [7,8], excited-state absorption [9] and photon avalanche [10]. The combination of these processes leads to the wavelength of emission being shorter than the excitation wavelength.…”

Section: Introductionmentioning

confidence: 99%

Influence of Yb3+ concentration on the upconversion luminescence of oxyfluoride material doped with Er3+

Zhao

Wang

et al. 2010

Sci. China Phys. Mech. Astron.

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In this paper, a new upconversion luminescent material co-doped with Erbium and Ytterbium is reported. The upconversion luminescence transition routes and related properties are studied. The results show that the absorption and emission intensities under excitation of 980 nm laser increase with the increase of the Yb 3+ concentration. The red emission is stronger than the green emission. The energy transfer process plays an important role in the upconversion mechanism.upconversion, luminescence, Er 3+ , Yb 3+

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Photon avalanche upconversion in rare earth laser materials

Cited by 415 publications

References 77 publications

Lanthanide Luminescence in Solids

Lanthanide Luminescence in Solids

<title>Stokes and anti-Stokes luminescence in LiTaO<formula><inf><roman>3</roman></inf></formula>:Ho</title>

Influence of Yb3+ concentration on the upconversion luminescence of oxyfluoride material doped with Er3+

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