Browsing by Author "Ruiz, H. M."
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- ItemCollision dynamics of laser produced carbon plasma plumes(2016) Favre Domínguez, Mario; Ruiz, H. M.; Cortés, D.; Merello, F.; Bhuyan, Heman; Veloso Espinosa, Felipe Eduardo; Wyndham, E.
- ItemEffects of a static inhomogeneous magnetic field acting on a laser-produced carbon plasma plume(2017) Favre Domínguez, Mario; Ruiz, H. M.; Caballero Bendixen, L S; Reyes Swett, Sebastián Andrés; Veloso Espinosa, Felipe Eduardo; Wyndham, E; Bhuyan, Heman
- ItemPlasma species dynamics in a laser produced carbon plasma expanding in low pressure neutral gas background(2012) Ruiz, H. M.; Guzmán Olivos, Fernando Alfredo; Favre Domínguez, Mario; Bhuyan, Heman; Chuaqui, Hernán; Wyndham, Edmund
- ItemPulsed laser deposition of carbon nanodots(2015) Muñoz, G.; Homm, P.; Guzmán, F.; Ruiz, H. M.; Caballero, L. S.; Favre Domínguez, Mario; Flores, M.; Hevia, Samuel
- ItemPulsed laser deposition of thin carbon films in a neutral gas background(2013) Guzman, F.; Favre, M.; Ruiz, H. M.; Hevia, S.; Caballero, L. S.; Wyndham, E. S.; Bhuyan, H.; Flores, M.; Maendl, S.We studied carbon film deposition using a laser-produced plasma, in argon and helium background gas, at pressures between 0.5 and 700 mTorr. A Nd : YAG, 370 mJ, 3.5 ns, at 1.06 mu m, operating at 10 Hz, with a fluence of 6.7 J cm(-2) was used. The laser plasma was characterized using space resolved OES and a fast response Faraday cup. The resulting carbon films were analysed using AFM, Raman spectroscopy, XPS and SIMS. The structural properties of the carbon films were found to be strongly correlated with the laser carbon plasma composition. Films with a relatively high content of sp(3), characteristic of DLC, were obtained at pressures below 200 mTorr. For these conditions the characteristic carbon ion energies in the expanding laser plasma were of the order of 100 eV. At higher pressures sp(2) bonds, associated with amorphous carbon, were dominant, which coincides with a high content of C-2 molecules in the laser plasma, and a characteristic carbon ion energy around 20 eV.
- ItemSTUDIES OF PLASMA DYNAMICS IN COLLIDING LASER PLASMA PLUMES(IEEE, 2015) Favre, M.; Merello, F.; Bhuyan, H.; Veloso, F.; Wyndham, E. S.; Ruiz, H. M.
- ItemSub-micron size carbon structures synthesized using plasma enhanced CVD without external heating and no catalyzer action(2010) Valderrama, Enrique; Favre Domínguez, Mario; Bhuyan, Heman; Ruiz, H. M.; Wyndham, Edmund; Valenzuela, J.; Chuaqui, H.