Now showing items 1-9 of 9

    • All-optical manipulation of photonic membranes 

      Kirkpatrick, Blair C.; Ploschner, Martin; Čižmár, Tomas; Di Falco, Andrea (SPIE, 2016-08-28) - Conference item
      Photonic membranes (PMs) are thin, highly-flexible, membranes which can be imbued with specific photonic functionalities when used to play host to plasmonic features.1-3 PMs can then take that photonic functionality and ...
    • Code underpinning - Modal beam splitter: determination of the transversal components of an electromagnetic light field 

      Mazilu, Michael; Vettenburg, Tom; Ploschner, Martin; Wright, Ewan Malcolm; Dholakia, Kishan (University of St Andrews, 2017) - Software
      Mathematica code simulating the mode splitting using the optical eigenmode method.
    • Flexible metamaterials at visible wavelengths 

      Di Falco, Andrea; Ploschner, Martin; Krauss, Thomas F. (2010-11-04) - Journal article
      We report on the fabrication and characterization of plasmonic structures on flexible substrates (Metaflex) and demonstrate the optical properties of a single layer of Metaflex. The layer exhibits a plasmonic resonance in ...
    • Laser-induced breakdown of an optically trapped gold nanoparticle for single cell transfection 

      Arita, Yoshihiko; Ploschner, Martin; Antkowiak, Maciej; Gunn-Moore, Frank J; Dholakia, Kishan (2013-08) - Journal article
      The cell selective introduction of therapeutic agents remains a challenging problem. Here we demonstrate spatially controlled cavitation instigated by laser-induced breakdown of an optically trapped single gold nanoparticle ...
    • Modal beam splitter : determination of the transversal components of an electromagnetic light field 

      Mazilu, Michael; Vettenburg, Tom; Ploschner, Martin; Wright, Ewan Malcolm; Dholakia, Kishan (2017-08-22) - Journal article
      The transversal profile of beams can always be defined as a superposition of orthogonal fields, such as optical eigenmodes. Here, we describe a generic method to separate the individual components in a laser beam and map ...
    • Numerical investigation of passive optical sorting of plasmon nanoparticles 

      Ploschner, Martin; Mazilu, Michael; Cizmar, Tomas; Dholakia, Kishan (2011-07-06) - Journal article
      We explore the passive optical sorting of plasmon nanoparticles and investigate the optimal wavelength and optimal beam shape of incident field. The condition for optimal wavelength is found by maximising the nanoparticle ...
    • Optical forces near a nanoantenna 

      Ploschner, Martin; Mazilu, Michael; Krauss, Thomas F.; Dholakia, Kishan (2010-02-04) - Journal article
      The Maxwell stress tensor method is used to calculate the optical forces acting upon a glass nanosphere in the proximity of optically excited gold nanoantenna structures. The dependence of optical forces over a full range ...
    • The role of the plasmon resonance for enhanced optical forces 

      Ploschner, Martin (University of St Andrews, 2012-11-30) - Thesis
      Optical manipulation of nanoscale objects is studied with particular emphasis on the role of plasmon resonance for enhancement of optical forces. The thesis provides an introduction to plasmon resonance and its role in ...
    • Single cell transfection by laser-induced breakdown of an optically trapped gold nanoparticle 

      Arita, Yoshihiko; Ploschner, Martin; Antkowiak, Maciej; Gunn-Moore, Frank; Dholakia, Kishan (SPIE, 2014-03-07) - Conference item
      Cell selective introduction of therapeutic agents remains a challenging problem. Cavitation-based therapies including ultrasound-induced sonoporation and laser-induced optoporation have led the way for novel approaches to ...