Correlation between second-order optical response and structure in thermally poled sodium niobium-germanate glass

Guimbretière, Guillaume; Dussauze, Marc; Rodriguez, Vincent; Kamitsos, E. I.

doi:10.1063/1.3506501

Cited by 29 publications

(50 citation statements)

References 29 publications

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“…The electronic charge transfer hypothesis can be supported by the detection of electrons contribution to glass conductivity in poling 21 and by the registration of molecular oxygen in a sufficiently 4 thick, ∼1 micron, subanodic layer of poled glasses 12,18, 19 , not only in the close vicinity of the anodic electrode as supposed in Ref. 20.…”

Section: Introductionmentioning

confidence: 77%

“…Guimbretière and co-authors 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 …”

Section: Discussionunclassified

“…Starting from the pioneering study by Krigier 21 till recent research 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 16 is supposed to be necessary for the formation of neutral oxygen 19 . Although the mechanism of electron transport is not a subject of this study, however it needs to be considered here in the relation to the formation of molecular oxygen.…”

Section: The Mechanism Of Electron Transport In Subanodic Layermentioning

confidence: 99%

“…According to the second hypothesis 21 , negative charge transfer in the cation-depleted layer is purely electronic process, the electrons being generated in the discharge of negatively charged non-bridging oxygen atoms, while the oxygen atoms remain stationary and some way recombine with O 2 formation 19 .…”

Section: Introductionmentioning

confidence: 99%

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How Does Thermal Poling Produce Interstitial Molecular Oxygen in Silicate Glasses?

2015

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Thermal poling of glasses induces structural and compositional modification and breaks central symmetry of these initially isotropic media. In spite of numerous experimental data accumulated, little is known about the processes occurring in soft glasses under this processing. We use micro-Raman technique to study the formation of interstitial molecular oxygen and structural modification of the subsurface layer of a soda-lime silicate glass in the course of thermal poling. The presence of O 2 is demonstrated in cation-depleted subanodic region of the glass, the thickness of which depends on the charge passed during the poling procedure and, in our experiments, reaches one micron. O 2 concentration in this layer is independent on the charge passed and is of the order of 3⋅10 20 cm -3 being maximal in anodic surface craters arising because of poling current non-uniformities. O 2 generation is accompanied by an increase in the concentration of three-membered Si-O rings in the modified region of the glass matrix. The ways of non-bridging oxygen recombination are discussed and proposed as the main mechanism of the interstitial O 2 formation.

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Section: Introductionmentioning

confidence: 77%

Section: Discussionunclassified

Section: The Mechanism Of Electron Transport In Subanodic Layermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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How Does Thermal Poling Produce Interstitial Molecular Oxygen in Silicate Glasses?

2015

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“…As a non‐negligible signal is measured with the s‐s polarization configuration (i.e., at Ψ = 90°), this SHG response does not obey to the C ∞ v symmetry. The origin of this residual signal is not clear, but it might be correlated with the formation of structural entities with a weak anisotropic NLO response …”

Section: Poling Mechanisms and Their Link To Sonl In Thermally Poled mentioning

confidence: 99%

Thermal Poling of Optical Glasses: Mechanisms and Second‐Order Optical Properties

Dussauze

Cremoux

Adamietz

et al. 2012

Int J of Appl Glass Sci

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The objective to induce reproducible, efficient, and stable second‐order nonlinear optical properties (SONL) in an isotropic material remains a challenge in photonics. Thermal poling allows inducing SONL properties in glasses by the formation of an axial symmetry because of the implementation of a static electric field within the glassy matrix. A description of the main poling mechanisms is proposed. Depending on the glass compositions and the poling conditions, an effort is made to correlate poling mechanisms and the strength of the implemented static electric field. A review of the main technological improvements done to develop poled‐silica‐based electro‐optical modulators as well as the SONL efficiencies obtained for different glass compositions is reported and analyzed.

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Accurate Second Harmonic Generation Microimprinting in Glassy Oxide Materials

Dussauze

Rodriguez

Adamietz

et al. 2016

Advanced Optical Materials

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Spatial and geometry controls of second order optical properties at the micrometer scale have been achieved on borophosphate niobium glasses by thermal poling using micropatterned anode electrodes. Electrode structuring should induce local field enhancement, which is observed at the edges of an indium tin oxide‐ablated layer. A lateral poling effect governs the geometry and the strength of the electric field implemented. The potential of such process to fabricate large scale microstructured periodical design of second order optical properties has been demonstrated.

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Correlation between second-order optical response and structure in thermally poled sodium niobium-germanate glass

Abstract: Polarization mechanisms and structural rearrangements in thermally poled sodium-alumino phosphate glasses J. Appl. Phys. 107, 043505 (2010); 10.1063/1.3305318Large second order optical nonlinearity in thermally poled amorphous niobium borophosphate films

Cited by 29 publications

References 29 publications

How Does Thermal Poling Produce Interstitial Molecular Oxygen in Silicate Glasses?

How Does Thermal Poling Produce Interstitial Molecular Oxygen in Silicate Glasses?

Thermal Poling of Optical Glasses: Mechanisms and Second‐Order Optical Properties

Accurate Second Harmonic Generation Microimprinting in Glassy Oxide Materials

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