Solid-State Laser Engineering

Cox, L.

doi:10.1080/713819665

Cited by 4 publications

(3 citation statements)

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“…[1][2][3][4][5][6] Nd 3+ was the first of the trivalent rare earth ions to be used in a laser, and has been one of the most studied rareearth elements. 7,8 Neodymium-doped glasses have intensely been investigated, once neodymium has been recognized as one of the most efficient rare-earth ions for solid-state lasers due to its intense 4 F 3/2 ? 4 I 11/2 emission at around 1.06 lm.…”

Section: Introductionmentioning

confidence: 99%

“…4 I 11/2 emission at around 1.06 lm. 5,8,9 The interest in Calcium Boroaluminate (CaBAl) glasses has risen due to their physical, thermal, mechanical, and optical properties, such as high transparency, low melting temperature, high thermal stability, high chemical durability, and good solubility of rare-earth ions, allowing their use in many optical applications, in particular, as laser host materials. 3,[10][11][12][13][14] The aim of this study is to investigate the role of Nd 2 O 3 on optical, spectroscopic, and thermo-optical properties in CaO-Al 2 O-B 2 O 3 -CaF 2 glass system.…”

Section: Introductionmentioning

confidence: 99%

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Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses

Dias

Melo

Paz

et al. 2018

Int J of Appl Glass Sci

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The Nd3+‐doped CaO‐Al2O–B2O3‐CaF2 glasses were prepared by melt‐quenching technique and their optical, spectroscopic, and thermo‐optical properties were studied. The density and refractive index showed an increase with addition of Nd2O3 at the expense of CaO. The electronic polarizability increases with Nd2O3 concentration due to the increase in NBO. The absorption spectra present characteristic bands of Nd3+ transitions from the ground state 4I9/2 to the various excited states. The luminescence spectra show Nd3+ emission at ~880 nm (4F3/2 → 4 I9/2) and ~1064 nm (4F3/2 → 4 I11/2), which increases with Nd2O3 up to 3 wt%. The experimental lifetime decreases when Nd2O3 content increases, mainly due to the nonradiative processes of direct energy transfer between Nd3+ ions (cross relaxation). Results of thermal coefficient of optical path length (dS/dT) for the CaBAl glasses did not present significant changes with Nd2O3 concentration. These with values are comparable to the Fused Silica, and lower than the values measured for the CAS and LSCAS glasses. The results point out this glass system as a good candidate to be used in the development of photonics devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses

Dias

Melo

Paz

et al. 2018

Int J of Appl Glass Sci

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“…Por esta análise nota-se que, em lasers convencionais, a presença de impurezas leva ao aumento das perdas no ressonador, o que consequentemente gera um aumento do limiar laser, diminuindo a eficiência do sistema [65].…”

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Desenvolvimento de métodos para a geração e controle da emissão em lasers aleatórios e <i>speckle</i>

Silva¹

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Gas Chromatographic Separation of Enantiomers on Optically Active Metal‐Complex‐Free Stationary Phases. New Analytical Methods (24)

Schurig

1984

Angew. Chem. Int. Ed. Engl.

106

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If a stationary phase A employed in gas chromatography possesses a chemical affinity for substance B, which is to be separated, then the retention behavior is not only determined by the normal physical equilibrium between the gas and liquid phases but also by the chemical equilibrium A + B + A B . If A and B are chiral and A is present in optically active form while B is a racemic mixture, then it is possible to achieve a gas chromatographic enantiomer resolution without the isolation of diastereomers: the energetically different diastereomeric associates AR B, and AR B, are formed rapidly and reversibly. This enantiospecific resolution principle was first demonstrated in 1966 by the quantitative resolution of racemic amino acid derivatives on optically active peptide phases in analogy to the well-known stereospecificity of enzymes. The anchoring of the chiral resolving agent to thermally stable polysiloxanes together with the employment of high resolution capillary columns and the use of appropriate derivatization strategies has led to the development of enantiomer resolution into a routine modern method for many classes of substances. The demonstration of enantiospecificity in the gas chromatographic separation process is of fundamental interest, and its systematic study can result in a significant contribution to the understanding of the molecular mechanism of "chiral recognition". The gas chromatographic separation of enantiomers has also proven to be an accurate and sensitive method for the determination of the enantiomeric composition of natural products and products of enantioselective transformations (asymmetric syntheses, "chiral pool" transformations, kinetic resolutions, biomimetic reactions) and for the quantification of racemization, e. g. in the synthesis and hydrolysis of peptides. In any research program devoted to the phenomenon of chirality, the gas chromatographic separation of the enantiomers of volatile compounds constitutes an indispensable modern instrumental technique.

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Solid-State Laser Engineering

Cited by 4 publications

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Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses

Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses

Desenvolvimento de métodos para a geração e controle da emissão em lasers aleatórios e <i>speckle</i>

Gas Chromatographic Separation of Enantiomers on Optically Active Metal‐Complex‐Free Stationary Phases. New Analytical Methods (24)

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Solid-State Laser Engineering

Cited by 4 publications

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Optical, spectroscopic, and thermo‐optical properties of Nd2O3‐doped CaBAl glasses

Optical, spectroscopic, and thermo‐optical properties of Nd2O3‐doped CaBAl glasses

Desenvolvimento de métodos para a geração e controle da emissão em lasers aleatórios e <i>speckle</i>

Gas Chromatographic Separation of Enantiomers on Optically Active Metal‐Complex‐Free Stationary Phases. New Analytical Methods (24)

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Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses

Optical, spectroscopic, and thermo‐optical properties of Nd₂O₃‐doped CaBAl glasses