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News published in September 2017
  • Friday, 22
  • Biofísica

    Colloquia of Physics. (Science of today)

     

    Tenth edicion of the colloquia of Physics with "Biophysics of the Cell Mother". Given by the Professor Doctor Josefina María Vegara-Meseguer, of the Catholic University of Murcia (UCAM)

    This colloquium is opened to the public in general and especially to the students of first course of Physics of the UA.

    The colloquium will take place Friday 29 September, at 13:00 hours, in the Living Room of Acts of the Faculty of Law of the University of Alicante.

  • Tuesday, 19
  • Lecture

    SEMINAR: "PHYSICS IN An ENTORN QUOTIDIÀ"

     

     

     

     

    Given by: Rafael García Molina

    Date and hour: Wednesday, 4 October 2017

    Place: Living room of Degrees: Rector Ramón Martín Mateo of the Faculty of Right

     

    Abstract:

    La física és una ciència que ens permet entendre com funciona el món, des de l'escala del macrocosmos (astrofísica, cosmologia...) fins a la del micromón (estructura atòmica i molecular, matèria condensada...). De fet, aquests dos escenaris són els que més fascinen a les persones que s'interessen per la física. Aquests dos meravellosos marcs representen escales extremes de temps, espai, energia... Però entre aquestes situacions extremes, la riquesa i potència de la física també es manifesta en multitud de fenòmens de la nostra vida quotidiana.

    En aquesta conferència presentaré un conjunt d'experiments de física que es poden realitzar amb materials que trobem fàcilment al nostre entorn. La selecció d'experiments s'ha fet tenint en compte que són vistosos, divertits (ja que als físics també ens agrada passar-ho bé!) i, allò que és més important, perquè per a la seua correcta interpretació cal aplicar conceptes i formalismes de diferents àrees de la física. El grau de complexitat requerit per a explicar alguns dels experiments que es presentaran involucra des de coneixements bàsics de física fins a l'ús de models i formalismes sofisticats i elaborats.

  • Lecture

    SEMINAR: "SELF-ASSEMBLED CONJUGATED ORGANIC/POLYMER MICROCAVITIES FOR OPTICAL RESONATORS AND LASERS"

     

     

     

    Given by: Yohei Yamamoto

    Date and hour: Friday, 22 September 2017 to the 11:30 hours

    Place: Polyvalent Room of the Department of Physics Applied. Faculty of Sciences, Phase II

     

    Abstract:

    Optical microcavities play an important role for the next-generation light technology. Recently, we succeeded in fabricating spherical microcavities from %u03C0-conjugated polymers (CPs) by simple self-assembly process. We found that the microcavities exhibit whispering gallery mode (WGM) resonant photoluminescence (PL) upon focused laser excitation, where PL generated inside the sphere is confined via total internal reflection at the polymer/air interface.[2%u20138] The resonance occurs when the wavelength of the light is an integer multiple of the circumference of the microsphere. The CP-based microcavities have benefits to the conventional microcavities in the following points:

    (1) Simple and low-energy fabrication process to obtain well-defined microspheres.

    (2) The microcavities act ace both cavity and emitter.

    (3) The microcavities possess high refractive index and photoabsorptivity.

    (4) Potent use for electrically-driven WGM and laser oscillation.

    In this presentation, recent results on the fundamentals of the self-assembly of the CPs, resonant PL from the CP microspheres, intra- and intersphere light energy conversion, , optically-pumped lasing, and the future prospects to realize light-, electrically-, and chemically-driven WGM and lasing will be presented.

    References

    [1] T. Adachi, et al., J. Am. Chem. Soc. 2013, 135, 870%u2212876.

    [2] K. Tabata, et al., Sci. Rep. 2014, 4, 5902/1%u22125.

    [3] S. Kushida, et al., Macromolecules 2015, 48, 3928%u22123933.

    [4] S. Kushida, et al., ACS Nano 2016, 10, 5543%u20135549.

    [5] D. Okada, et al., ACS Nano 2016, 10, 7058%u20137063.

    [6] D. Braam, et al., Sci. Rep. 2016, 6, 19635/1%u20136.

    [7] And. Yamamoto, Polym. J. 2016, 48, 1045%u20131050.

    [8] S. Kushida, et al., Adv. Opt. Mater. 2017, 5, 1700123.

  • Departamento de Física Aplicada logo

    Defence of thesis doctoral

     

    "ELECTRONIC TRANSPORT IN METALS AT THE ATOMIC SCALE: CAPACITANCE EMERGENT MAGNETISM AND F-ELECTRONS INFLUENCE"

     

     

    APPEALS FOR THE INTERNATIONAL DOCTORATE DEGREE

    Doctorando: Bernat Josep Olivera Esteve

    Director: Dr. Carlos Untiedt Lecuona

     

    Day: Tuesday, 22 September 2017

    Hour: 10:00 hours

    Place: Boardroom Faculty of Law

  • Monday, 11
  • Lecture

    SEMINAR: "INTERACTION OF IONS WITH MOLECULES: ELECTRONIC CROSS SECTIONS WITHIN THE FLOATING SPHERICAL GAUSSIAN ORBITAL"

     

     

     

    Given by: Natalia Trujillo

    Date and hour: Monday, 18 September 2017 to the 12:30 hours

    Place: Polyvalent Room of the Department of Physics Applied. Faculty of Sciences, Phase II

     

    Abstract:

    The interaction of ions with atomic and Molecular targets have been to subject of interest since the advent of quantum mechanics. One of the many challenges to take into account is the N body problem. At the same time, many phenomena plough carried out during those collisions such ace charge transfer, excitation, ionization, energy loss or fragmentation, for example, for which cross sections must be calculated in order to explain the process. Furthermore, for to proper description for molecular targets should incorporate dynamical effects such bond breaking and bond making.

    We have used the floating spherical gaussian Orbital (FSGO) model to describes the electronic structure of atoms and molecules in collision systems. The study is performed for protons colliding with small molecules, hydrocarbons, nucleobases and DNA.

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