Search Results - "Lambropoulos, J. C."

Dynamics of secondary contamination from the interaction of high-power laser pulses with metal particles attached on the input surface of optical components by Demos, S G, Lambropoulos, J C, Negres, R A, Matthews, M J, Qiu, S R

“…We investigate the interaction of 355-nm and 1064-nm nanosecond laser pulses with nominally spherical metallic particles dispersed on the input surface of…”
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Simulation of internal stress waves generated by laser-induced damage in multilayer dielectric gratings by Gracewski, S M, Boylan, S, Lambropoulos, J C, Oliver, J B, Kessler, T J, Demos, S G

“…Multilayer dielectric (MLD) gratings used in ultrahigh-intensity laser systems often exhibit a laser-induced damage performance below that of their constituent…”
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Nanoindentation technique for measuring residual stress field around a laser-induced crack in fused silica by DAHMANI, F, LAMBROPOULOS, J. C, SCHMID, A. W, BURNS, S. J, PRATT, C

“…A nanometre scale indentation technique using microprobe indentations to measure residual stresses at selected positions near u.v.-laser-induced cracks in…”
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Residual stress model for CaF2 by Zhang, Q., Lambropoulos, J.C.

“…Nanoindentation tests and finite element analysis that considers elastic-mesoplastic deformation for single crystals were used to investigate the mechanical…”
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Nanoindentation of high-aspect ratio pillar structures on optical multilayer dielectric diffraction gratings by Mehrotra, K., Howard, H. P., Jacobs, S. D., Lambropoulos, J. C.

“…The mechanical response of optical multilayer dielectric (MLD) diffraction gratings has been studied using nanoindentation. The results are interpreted using a…”
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Microhardness and Indentation Fracture of Potassium Dihydrogen Phosphate (KDP) by Fang, Tong, Lambropoulos, John C.

“…Potassium dihydrogen phosphate (KDP) is an important electrooptic tetragonal crystal, often used in third harmonic generation in laser systems. We have used…”
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Fracture of fused silica with 351 nm laser-generated surface cracks by Dahmani, F., Lambropoulos, J. C., Schmid, A. W., Papernov, S., Burns, S. J.

“…Laser-induced-surface-flaw experiments on fused silica at 351 nm and 500 ps pulse duration are reported here. Specimens with surface flaws produced at a…”
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Interface Contributions to Localized Heating of Dielectric Thin Films by Lambropoulos, J. C., Hwang, S. S.

“…Measurements of the thermal conductivity of thin dielectric films in the last ten years have established that thin film thermal conductivity may be much lower…”
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UV-laser-induced densification of fused silica: a molecular dynamics study by Zheng, Lianqing, Lambropoulos, John C., Schmid, Ansgar W.

“…Classical molecular dynamics simulations have been performed to study the UV-laser-induced densification in fused silica. Relationships between induced…”
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Deterministic Microgrinding, Lapping, and Polishing of Glass-Ceramics by Lambropoulos, John C., Jacobs, Stephen D., Gillman, Birgit E., Stevens, Harrie J.

“…We report a series of microgrinding and polishing experiments on glass–ceramics. Microgrinding includes deterministic microgrinding (two‐body abrasion at fixed…”
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Molecular dynamics study of UV-laser-induced densification of fused silica. II. Effects of laser pulse duration, pressure, and temperature, and comparison with pressure-induced densification by Zheng, Lianqing, Lambropoulos, John C., Schmid, Ansgar W.

“…Numerical simulations on UV-laser-induced densification of fused silica have been performed using classical molecular dynamics. The effect of laser irradiation…”
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Stress compensation in hafnia/silica optical coatings by inclusion of alumina layers by Oliver, J. B., Kupinski, P., Rigatti, A. L., Schmid, A. W., Lambropoulos, J. C., Papernov, S., Kozlov, A., Smith, C., Hand, R. D.

“…Hafnium dioxide films deposited using electron-beam evaporation tend to exhibit high tensile stresses, particularly when deposited on low-thermal-expansion…”
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Anisotropic thermal conductivity of rare earth–transition metal thin films by Shaw-Klein, L.J., Hatwar, T.K., Burns, S.J., Jacobs, S.D., Lambropoulos, J.C.

“…Thermal conductivity measurements were performed on several amorphous rare earth transition metal thin films of varying microstructure. The thermal…”
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Surface–texture evolution of different chemical-vapor-deposited zinc sulfide flats polished with various magnetorheological fluids by Salzman, Sivan, Romanofsky, Henry J., Jacobs, Stephen D., Lambropoulos, John C.

“…•We show crystallographic variations among CVD ZnS manufactured by different vendors.•This raises inconsistent performances during magnetorheological…”
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Lifetime prediction of laser-precracked fused silica subjected to subsequent cyclic laser pulses by Dahmani, Faiz, Schmid, Ansgar W., Lambropoulos, John C., Burns, Stephen J., Papernov, Semyon

“…Measurements of fatigue failure strength of laser-cracked fused silica in air at room temperature for different numbers of laser shots and laser fluences are…”
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Elastic and plastic anisotropy during growth from the melt of single semiconductor crystals by Lambropoulos, John C.

“…The effect on dislocation density of elastic anisotropy (relation of growth direction to elastic stiffness tensor of cubic symmetry) and of plastic anisotropy…”
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Thermal shock and post-quench strength of lapped borosilicate optical glass by Liu, Han, Wu, Yuansun, Lambropoulos, John C.

“…We have measured and modeled the thermal shock fracture and strength degradation of the commercially available BK-7 borosilicate crown optical glass as a…”
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Thermoelastic analysis of dislocation generation during edge-defined film-fed growth of polygonal shells by Wu, Chien-Hsing, Lambropoulos, John C.

“…A thermoelastic model is used to predict qualitatively the dislocation generation for the edge-defined film-fed growth (EFG) of polygonal shells. The…”
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Thermomechanics of thin films and interfaces by LAMBROPOULOS, J. C

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Controlling Femtosecond Laser Ablation of Germanium for Laser Polishing Applications by Taylor, L. L., Xu, J., Smith, T. R., Pomerantz, M., Lambropoulos, J. C., Qiao, J.

“…Sensitivity of femtosecond laser ablation to laser parameters was investigated to evaluate controllability of germanium material removal. A processing metric…”
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