Listar por autoría "2e897a11-e89a-42c8-89e1-cafdf27d4b8a"

Mostrando ítems 21-40 de 56

    • openAccess   Femtosecond-laser-irradiation-induced structural organization and crystallinity of Bi2WO6 

      Pinatti, Ivo M; Gouveia, Amanda; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Longo, Elson Nature Research (2020)
      Controlling the structural organization and crystallinity of functional oxides is key to enhancing their performance in technological applications. In this work, we report a strong enhancement of the structural organization ...

    • openAccess   Fractal generalized zone plates 

      Mendoza-Yero, Omel; Fernández Alonso, Mercedes; Mínguez-Vega, Gladys; Lancis, Jesús; Climent, Vicent; Monsoriu, Juan A. Optical Society of America (2009)
      The construction of fractal generalized zone plates (FraGZPs) from a set of periodic diffractive optical elements with circular symmetry is proposed. This allows us to increase the number of foci of a conventional fractal ...

    • openAccess   Frequency resolved wavefront retrieval and dynamics of diffractive focused ultrashort pulses 

      Alonso, Benjamín; Borrego Varillas, Rocío; Mendoza-Yero, Omel; Sola, Íñigo Juan; San Román, Julio; Mínguez-Vega, Gladys; Roso, Luis Optical Society of America (2012-08)
      In this work we demonstrate the ability of the spatiotemporal characterization technique STARFISH to retrieve the wavelength dependent wavefront of focused ultrashort laser pulses. The high resolution achievable with this ...

    • openAccess   Fresnel phase retrieval method using an annular lens array on an SLM 

      Loriot, Vincent; Mendoza-Yero, Omel; Pérez Vizcaíno, Jorge; Mínguez-Vega, Gladys; De Nalda, R.; Bañares, Luis; Lancis, Jesús Springer (2014-10)
      Wavefront aberrations play a major role when focusing an ultrashort laser pulse to a high-quality focal spot. Here, we report a novel method to measure and correct wavefront aberrations of a 30-fs pulsed laser beam. The ...

    • openAccess   From Complex Inorganic Oxides to Ag–Bi Nanoalloy: Synthesis by Femtosecond Laser Irradiation 

      Machado, Thales Rafael; Guerra Macedo, Nadia; Assis, Marcelo de; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Teixeira, Mayara Mondego; Foggi, Camila Cristina; Vergani, Carlos; Beltrán Mir, Héctor; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson American Chemical Society (2018-08-24)
      Bimetallic nanoalloys with a wide variety of structures and compositions have been fabricated through many diverse techniques. Generally, various steps and chemicals are involved in their fabrication. In this study, the ...

    • closedAccess   Generation of multifocal irradiance patterns by using complex Fresnel holograms 

      Mendoza-Yero, Omel; Carbonell Leal, Miguel; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2018)
      We experimentally demonstrate Fresnel holograms able to produce multifocal irradiance patterns with micrometric spatial resolution. These holograms are assessed from the coherent sum of multiple Fresnel lenses. The utilized ...

    • openAccess   Green nanoparticle synthesis at scale : a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production 

      Khairani, Inna Yusnila; Mínguez-Vega, Gladys; Doñate-Buendía, Carlos; Gökce, Bilal Royal Society of Chemistry (2023-07-06)
      Nanoparticles have become increasingly important for a variety of applications, including medical diagnosis and treatment, energy harvesting and storage, catalysis, and additive manufacturing. The development of nanoparticles ...

    • openAccess   High photocatalytic activity of Ag/Ag3PO4:W heterostructure formed by femtosecond laser irradiation 

      Barrios Trench, Aline; Teodoro , Vinícius; G. da Trindade, Letícia; Machado, Thales Rafael; Mínguez-Vega, Gladys; Cordoncillo, Eloisa; Doñate-Buendía, Carlos; Andres, Juan; Longo, Elson Sao Paulo State University. Institute of Chemistry (2022-04-11)
      In this work, the W-doped Ag3PO4 was prepared by the chemical coprecipitation method and irradiated with a femtosecond laser (FL). The successful formation of the Ag/Ag3PO4:W heterostructure was confirmed by XRD analysis. ...

    • openAccess   High-visibility interference fringes with femtosecond laser radiation 

      Martinez Cuenca, Raul; Martínez-León, Lluís; Lancis, Jesús; Mínguez-Vega, Gladys; Mendoza-Yero, Omel; Tajahuerce, Enrique; Clemente Pesudo, Pedro Javier; Andrés, Pedro Optical Society of America (2009)
      We propose and experimentally demonstrate an interferometer for femtosecond pulses with spectral bandwidth about 100 nm. The scheme is based on a Michelson interferometer with a dispersion compensating module. A diffractive ...

    • openAccess   Improving the Antibacterial Properties of Dental Bonding Materials Loaded with Silver Compounds 

      Ferrando-Magraner, Elena; García-Sanz, Verónica; Bellot-Arcís, Carlos; Marín, Anna; Cabedo, Luis; Mínguez-Vega, Gladys; Paredes-Gallardo, Vanessa MDPI (2023-12-13)
      Biofilm accumulation, the appearance of white spot lesions and the development of secondary caries are the main complications in orthodontic patients. A promising approach to fight this situation is the development of ...

    • openAccess   In situ decoration of graphene sheets with gold nanoparticles synthetized by pulsed laser ablation in liquids 

      Torres-Mendieta, Rafael; Ventura Espinosa, David; Sabater López, Sara; Lancis, Jesús; Mínguez-Vega, Gladys; Mata Martínez, Jose A (2016-07)
      The demand for nanocomposites of graphene and carbonaceous materials decorated with metallic nanoparticles is increasing on account of their applications in science and technology. Traditionally, the production of ...

    • openAccess   Inactivation of SARS-CoV-2 by a chitosan/α-Ag2WO4 composite generated by femtosecond laser irradiation 

      Pereira, Paula; de Paula e Silva, Ana Carolina Alves; Alves da Silva Pimentel, Bruna Natália; Pinatti, Ivo M; Simões, Alexandre; Vergani, Carlos; Barreto-Vieira, Debora Ferreira; da Silva, Marcos Alexandre Nunes; Dias Miranda, Milene; Santos Monteiro, Maria Eduarda; Tucci, Amanda Resende; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Andres, Juan; Longo, Elson Nature Research (2022)
      In the current COVID‑19 pandemic, the next generation of innovative materials with enhanced anti‑ SARS‑CoV‑2 activity is urgently needed to prevent the spread of this virus within the community. Herein, we report the ...

    • openAccess   Laser and electron beam-induced formation of Ag/Cr structures on Ag2CrO4 

      Lemos, Pablo; Silva, G. S.; Roca, R. A.; Assis, Marcelo de; Torres-Mendieta, Rafael; Beltrán Mir, Héctor; Mínguez-Vega, Gladys; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson Royal Society of Chemistry (2019)
      The interactions of silver chromate (Ag2CrO4) with a femtosecond (fs) laser and electron beam irradiations were investigated. For the first time, the growth and coalescence of metallic Ag nanoparticles (NPs) on an Ag2CrO4 ...

    • closedAccess   Laser-induced formation of bismuth nanoparticles 

      Assis, Marcelo de; Cordoncillo, Eloisa; Torres-Mendieta, Rafael; Beltrán Mir, Héctor; Mínguez-Vega, Gladys; Gouveia, Amanda; Leite, Edson; Andres, Juan; Longo, Elson Royal Society of Chemistry (2018)
      In the current communication, the synthesis of metallic Bi nanoparticles with coexisting crystallographic structures (rhombohedral, monoclinic, and cubic) obtained via direct femtosecond laser irradiation of NaBiO3 is ...

    • openAccess   Laser/Electron Irradiation on Indium Phosphide (InP) Semiconductor: Promising Pathways to In Situ Formation of Indium Nanoparticles 

      Assis, Marcelo de; Guerra Macedo, Nadia; Machado, Thales Rafael; Ferrer, Mateus M.; Gouveia, Amanda; Cordoncillo, Eloisa; Torres-Mendieta, Rafael; Beltrán Mir, Héctor; Mínguez-Vega, Gladys; Leite, Edson R.; Sambrano, Julio; Andres, Juan; Longo, Elson Wiley (2018)
      In the current study, whether femtosecond laser and electron beam irradiation of indium phosphide (InP) are “green,” fast, and effective methods to produce metallic In nanoparticles is probed. High-resolution transmission ...

    • openAccess   Micro-patterns of gold nanoparticles assembled by photovoltaic optoelectronic tweezers: application to plasmonic fluorescence enhancement 

      Elvira, Iris; Puerto Vivar, Andrés; Mínguez-Vega, Gladys; Rodríguez-Palomo, Adrián; Gómez-Tornero, Alejandro; Garcia Cabañes, Angel; Carrascosa Rico, Mercedes Optica Publishing Group (2022-10-27)
      Noble metal nanostructures are well-known for their ability to increase the efficiency of different optical or physical phenomena due to their plasmonic behavior. This work presents a simple strategy to obtain Au plasmonic ...

    • openAccess   Multibeam second-harmonic generation by spatiotemporal shaping of femtosecond pulses 

      Martinez Cuenca, Raul; Mendoza-Yero, Omel; Alonso, Benjamín; Sola, Íñigo Juan; Mínguez-Vega, Gladys; Lancis, Jesús Optical Society of America (2012)

    • openAccess   Multifunctional silver-coated transparent TiO2 thin films for photocatalytic and antimicrobial applications 

      González Cuadra, Jaime; Molina-Prados, Sergio; Mínguez-Vega, Gladys; Estrada, Ana C.; Trindade, Tito; Oliveira, C.; Seabra, M. P.; Labrincha, Joao; Porcar García, Samuel; Cadena, R.; Fraga Chiva, Diego; Carda Castelló, Juan Bautista Elsevier (2023)
      Transparent TiO2 thin films coated with Ag NPs were synthesized using two industrially applicable techniques, pulsed laser ablation (PLAL) and spray pyrolysis without using high vacuum. These transparent thin films ...

    • openAccess   Nonlinear Optics to Glucose Sensing: Multifunctional Nitrogen and Boron Doped Carbon Dots with Solid-State Fluorescence in Nanoporous Silica Films 

      Kiprop Kipnusu, Wycliffe; Doñate-Buendía, Carlos; Fernández-Alonso, Mercedes; Lancis, Jesús; Mínguez-Vega, Gladys Wiley (2020)
      Multifunctional triple color photoluminescent (PL) nitrogen–boron doped carbon quantum dots (CQDs) with high quantum yield (QY) of 58% are fabricated by one step femtosecond pulsed laser irradiation of a single precursor ...

    • openAccess   On-axis non-linear effects with programmable Dammann lenses under femtosecond illumination 

      Pérez Vizcaíno, Jorge; Mendoza-Yero, Omel; Borrego Varillas, Rocío; Mínguez-Vega, Gladys; Vázquez de Aldana, Javier R.; Lancis, Jesús Optical Society of America (2013)
      We demonstrate the utilization of Dammann lenses codified onto a spatial light modulator (SLM) for triggering non-linear effects. With continuous wave illumination Dammann lenses are binary phase optical elements that ...