Search Results - "Sanner, N."

Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization by Pasquier, C., Sentis, M., Utéza, O., Sanner, N.

“…We study surface ablation of dielectrics with single-shot few-cycle optical pulse (∼10 fs) in air, at intensities below and above the onset of air ionization…”
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Guidelines for efficient direct ablation of dielectrics with single femtosecond pulses by Lebugle, M., Sanner, N., Utéza, O., Sentis, M.

“…We provide guidelines to femtosecond laser users to select ad hoc laser parameters, namely the fluence and pulse duration, in the context of the development of…”
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Truncated Gaussian-Bessel beams for short-pulse processing of small-aspect-ratio micro-channels in dielectrics by Liu, X, Li, Q, Sikora, A, Sentis, M, Utéza, O, Stoian, R, Zhao, W, Cheng, G, Sanner, N

“…In order to control the length of micro-channels ablated at the surface of dielectrics, we use annular filtering apertures for tailoring the depth of focus of…”
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Measurement of femtosecond laser-induced damage and ablation thresholds in dielectrics by Sanner, N., Utéza, O., Bussiere, B., Coustillier, G., Leray, A., Itina, T., Sentis, M.

“…The paper is focused on the importance of accurate determination of surface damage/ablation threshold of a dielectric material irradiated with femtosecond…”
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Single- and multi-pulse formation of surface structures under static femtosecond irradiation by Guillermin, M., Garrelie, F., Sanner, N., Audouard, E., Soder, H.

“…Femtosecond surface structure modifications are investigated under irradiation with laser pulses of 150 fs at 800 nm, on copper and silicon. We report…”
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Control of material removal of fused silica with single pulses of few optical cycles to sub-picosecond duration by Utéza, O., Sanner, N., Chimier, B., Brocas, A., Varkentina, N., Sentis, M., Lassonde, P., Légaré, F., Kieffer, J. C.

“…Surface ablation of a dielectric material (fused silica) by single femtosecond pulses is studied as a function of pulse duration (7–450 fs) and applied fluence…”
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Direct ultrafast laser micro-structuring of materials using programmable beam shaping by Sanner, N., Huot, N., Audouard, E., Larat, C., Huignard, J.-P.

“…Using active and programmable focal-spot shaping, we demonstrate direct femtosecond laser micro-structuring of materials. Surface marking as well as drilling…”
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Surface ablation of corneal stroma with few-cycle laser pulses at 800 nm by Hoffart, L, Lassonde, P, Légaré, F, Vidal, F, Sanner, N, Utéza, O, Sentis, M, Kieffer, J-C, Brunette, I

“…We report measurements of crater diameter and surface ablation threshold as a function of laser fluence in porcine corneal stroma and fused silica with pulse…”
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100-kHz diffraction-limited femtosecond laser micromachining by SANNER, N, HUOT, N, AUDOUARD, E, LARAT, C, LAPORTE, P, HUIGNARD, J. P

“…We demonstrate active and adaptive wavefront correction of a 100-kHz amplified femtosecond laser chain, and investigate the subsequent improvement for…”
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New approach for determining the damage level of biological tissues using femtosecond laser: advantages and application to corneal surgery by Hoffart, L, Utéza, O, Sanner, N, Matonti, F, Sentis, M, Ridings, B, Conrath, J

“…Optimization of femtosecond laser characteristics in corneal surgery is still needed to improve clinical results. In this study, we describe an original…”
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Damage and ablation thresholds of fused-silica in femtosecond regime by Chimier, B., Utéza, O., Sanner, N., Sentis, M., Itina, T., Lassonde, P., Légaré, F., Vidal, F., Kieffer, J. C.

“…We present an experimental and numerical study of the damage and ablation thresholds at the surface of a dielectric material, e.g., fused silica, using short…”
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High UV average power at 15 kHz by frequency doubling of a copper HyBrID vapor laser in β-barium borate by Huot, N, Jonin, C, Sanner, N, Baubeau, E, Audouard, E, Laporte, P

“…Second harmonic generation of a copper HyBrID laser oscillator was performed at 15 kHz. 5.1 W UV (255 nm) total average power at 15 kHz were generated in two…”
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High temporal resolution and calibration in pump–probe experiments characterizing femtosecond laser–dielectrics interaction by Lebugle, M., Utéza, O., Sentis, M., Sanner, N.

“…In the aim of performing pump–probe experiments with a high temporal accuracy, the determination of the perfect temporal overlap of the two incoming pulses is…”
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Nouvelle approche de détermination du seuil d’endommagement de tissus biologiques par laser femtoseconde : intérêt et application à la chirurgie de la cornée by Hoffart, L., Utéza, O., Sanner, N., Matonti, F., Sentis, M., Ridings, B., Conrath, J.

“…L’optimisation de la qualité de la dissection stromale du tissu cornéen par laser femtoseconde est encore nécessaire afin d’améliorer les résultats cliniques…”
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Handling beam propagation in air for nearly 10-fs laser damage experiments by Pasquier, C., Blandin, P., Clady, R., Sanner, N., Sentis, M., Utéza, O., Li, Yu, long, Shen Yan

“…We present the design and operation in air of a laser test-bench able to measure the laser-induced damage threshold of optical materials and components with…”
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Toward determinism in surface damaging of dielectrics using few-cycle laser pulses by Sanner, N., Utéza, O., Chimier, B., Sentis, M., Lassonde, P., Légaré, F., Kieffer, J. C.

“…We introduce a quantitative measurement of the determinism of laser-induced damaging at the surface of a dielectric material, e.g., fused silica. Using laser…”
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Exchanging Letters and Silence: Moments of Empowerment in "Exiles" by Sanner, Kristin N.

“…James Joyce's play Exiles may initially appear to be a confused tale about a man who encourages, and then struggles with, a supposed affair that his wife has…”
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Time-resolved femtosecond laser pulse absorption at the surface of transparent dielectrics by Sanner, N., Lebugle, M., Sentis, M., Uteza, O.

“…Time-resolved absorption of a 500-fs laser pulse by fused silica is measured. The results evidence a strong contribution of linear absorption for high pump…”
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Guidelines for efficient direct ablation of dielectrics with single femtosecond pulses down to 7 fs by Sentis, M., Lebugle, M., Sanner, N., Uteza, O.

“…We demonstrated that the measurement of the laser-induced ablation threshold and the fluence for maximum ablation efficiency, are only required to qualify the…”
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Spatial beam shaping of femtosecond laser pulses application to micromachining and photowriting by Sanner, N., Huot, N., Audouard, E., Larat, C., Huignard, J.-P.

“…We present focal spot shaping of femtosecond pulses, using a programmable adaptive-optics device. Various shapes are obtained and their suitability for…”
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