• Effect of molecular organization on the image histograms of polarization SHG microscopy 

    Psilodimitrakopoulos, Sotiris; Amat Roldán, Iván; Loza Álvarez, Pablo; Artigas García, David (2012)
    Article
    Accés obert
    Based on its polarization dependency, second harmonic generation (PSHG) microscopy has been proven capable to structurally characterize molecular architectures in different biological samples. By exploiting this polarization ...
  • Estimating the helical pitch angle of amylopectin in starch using polarization second harmonic generation microscopy 

    Psilodimitrakopoulos, Sotiris; Amat Roldán, Iván; Loza Álvarez, Pablo; Artigas García, David (2010-08)
    Article
    Accés restringit per política de l'editorial
    Starch granules are among the brightest natural second harmonic generation (SHG) converters. They basically consist of amylose and amylopectin molecules and the source of the SHG signal is still undetermined. In the ...
  • Imaging amylopectin's order in starch using 3-dimensional polarization SHG 

    Psilodimitrakopoulos, Sotiris; Amat Roldán, Iván; Artigas García, David; Loza Álvarez, Pablo (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In minimally destructive SHG biomedical imaging (high resolution optical slicing) is greatly desirable to extract the maximum of information from the light matter interaction. Here we develop a 3-D biophysical model and ...
  • Lost writing uncovered by laser two-photon fluorescence provides a terminus post quem for Roman colonization of Hispania Citerior 

    Cormack, I G; Loza-Álvarez, P; Sarrado, L; Tomás, S; Amat Roldán, Iván; Torner Sabata, Lluís; Artigas García, David; Guitart, Josep; Pera, J; Ros, J (Journal of Archeaological Science, 2007-10)
    Article
    Accés restringit per política de l'editorial
    In this work, two-photon absorption fluorescence is used as a non-destructive method to detect the presence of paint upon an archaeological sample. The objective was to recover writing that, due to the discoloration caused ...