Spectroscopic and tunable laser properties of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Co</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>-doped single crystals

Manaa, H.; Guyot, Y.; Moncorgé, R.

doi:10.1103/physrevb.48.3633

Cited by 51 publications

(29 citation statements)

References 42 publications

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“…The Al , and near infrared ray usually emits and the emission spectrum is relatively broad [5]. Comparing our optical absorption spectra and fluorescence spectra with the above features about four coordinated Mn 4+ ions, it is proper to consider that six coordinated Mn 4+ ions cause the optical absorption and the fluorescence in our samples.…”

Section: Optical and Fluorescence Propertiesmentioning

confidence: 65%

New Red Phosphors Ca14Al10Zn6O35 : Mn

Sada

Saitoh

Takemoto

2014

Trans. Mat. Res. Soc. Japan

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New red phosphors with nominal composition of Ca 14 (Al 10-x Mn x )Zn 6 O 35 were synthesized successfully. The composition x at which the highest fluorescent intensity was obtained was found to be 0.09. The manganese ions were determined to be tetravalent and six-coordinated in the samples by analyses of optical absorption spectra and fluorescence spectra. These samples emit red fluorescence without most changes in chromaticity up to 200 o C with increasing temperature, though the fluorescence intensity decreased.

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Section: Optical and Fluorescence Propertiesmentioning

confidence: 65%

New Red Phosphors Ca14Al10Zn6O35 : Mn

Sada

Saitoh

Takemoto

2014

Trans. Mat. Res. Soc. Japan

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“…The unit cell of MgF 2 is tetragonal and the Mg 2+ ion is surrounded by six fluorine occupying the tops of distorted octahedral of D 2h site symmetry [3]. In MgF 2 crystals, the ligand distance is primarily restricted by the lattice constant and the nearest neighbor Mg-F distances are of the order of 1.98 Å.…”

Section: Introductionmentioning

confidence: 99%

“…We shall discuss here the results of application of the ECM of crystal field [8] [3,4] are obtained. Some common characteristics of crystal field and energy levels for two systems are presented and discussed.…”

Section: +mentioning

confidence: 99%

“…In MgF 2 crystals, the ligand distance is primarily restricted by the lattice constant and the nearest neighbor Mg-F distances are of the order of 1.98 Å. The optical properties of 3d ions in MgF 2 crystals have confirmed that Cr 3+ and Co 2+ ions are substitution in Mg 2+ sites [3,4]. In previous paper we have analyzed the and energy levels scheme, are scarce.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study between Energy Levels of Cr³⁺and Co²⁺Ions Doped in MgF₂Crystal

2009

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The aim of this paper is to present a comparison of the energy level schemes of Cr 3+ (3d 3 electrons) and Co 2+ (3d 7 electrons), each of ions doped, separately, in MgF 2 crystal. We report on the detailed and consistent crystal field analysis of Cr 3+ spectra in MgF 2 crystal and compare with results, previously obtained, for Co 2+ , doped in same host matrix. The results are based on application of the exchange charge model of crystal field to the calculation of crystal field parameters and energy levels of both ions doped in MgF 2 .The calculations have been performed on previously optimized geometry of MgF 2 crystal. The obtained results are compared with experimental data and discussed.

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“…The A and B elements are alkali metals and alkaline earth metals, respectively. Fluoroperovskite compounds have many applications due to their unique properties of tunable laser [4], crystal elds [5] electronphonon interactions [6,7] as well as phase transition behaviours [8] and * corresponding author; e-mail: murtaza@icp.edu.pk other physical properties, such as ferroelectricity [9], antiferromagnetism [10], and semiconductivity [11]. Moreover, the uoroperovskite compounds can be used in the medical eld to measure the dose during radiation therapy, and they may also be used in the manufacture of radiation imaging plates for X-rays, gamma-rays and thermal neutrons for medical and non-destructive testing applications.…”

Section: Introductionmentioning

confidence: 99%

Ab Initio Study of the Mechanical, Thermal and Optoelectronic Properties of the Cubic CsBaF₃

et al. 2015

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We have investigated the structural, elastic, electronic, optical and thermal properties of CsBaF3 perovskite using the full-potential linearized augmented plane wave method within the generalized gradient approximation and the local density approximation. Moreover, the modied BeckeJohnson potential (TB-mBJ) was also applied to improve the electronic band structure calculations. The ground state properties such as lattice parameter, bulk modulus and its pressure derivative were calculated and the results are compared with the available theoretical data. The elastic properties such as elastic constants, anisotropy factor, shear modulus, Young's modulus and Poisson's ratio are obtained for the rst time. Electronic and bonding properties are discussed from the calculations of band structure, density of states and electron charge density. The contribution of the dierent bands was analyzed from the total and partial density of states curves. The dierent interband transitions have been determined from the imaginary part of the dielectric function. The thermal eect on the volume, bulk modulus, heat capacities CV and the Debye temperature was predicted using the quasi-harmonic Debye model, in which the lattice vibrations are taken into account.

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Spectroscopic and tunable laser properties ofCo2+-doped single crystals

Cited by 51 publications

References 42 publications

New Red Phosphors Ca<sub>14</sub>Al<sub>10</sub>Zn<sub>6</sub>O<sub>35</sub> : Mn

New Red Phosphors Ca<sub>14</sub>Al<sub>10</sub>Zn<sub>6</sub>O<sub>35</sub> : Mn

Comparative Study between Energy Levels of Cr³⁺and Co²⁺Ions Doped in MgF₂Crystal

Ab Initio Study of the Mechanical, Thermal and Optoelectronic Properties of the Cubic CsBaF₃

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Spectroscopic and tunable laser properties ofCo2+-doped single crystals

Cited by 51 publications

References 42 publications

New Red Phosphors Ca<sub>14</sub>Al<sub>10</sub>Zn<sub>6</sub>O<sub>35</sub> : Mn

New Red Phosphors Ca<sub>14</sub>Al<sub>10</sub>Zn<sub>6</sub>O<sub>35</sub> : Mn

Comparative Study between Energy Levels of Cr3+and Co2+Ions Doped in MgF2Crystal

Ab Initio Study of the Mechanical, Thermal and Optoelectronic Properties of the Cubic CsBaF3

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Comparative Study between Energy Levels of Cr³⁺and Co²⁺Ions Doped in MgF₂Crystal

Ab Initio Study of the Mechanical, Thermal and Optoelectronic Properties of the Cubic CsBaF₃