Now showing items 1-10 of 10

    • 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.
    • A compact Airy beam light sheet microscope with a tilted cylindrical lens 

      Yang, Zhengyi; Prokopas, Martynas; Nylk, Jonathan; Coll Llado, Clara; Gunn-Moore, Frank J; Ferrier, David Ellard Keith; Vettenburg, Tom; Dholakia, Kishan (2014-10-01) - Journal article
      Light-sheet imaging is rapidly gaining importance for imaging intact biological specimens. Many of the latest innovations rely on the propagation-invariant Bessel or Airy beams to form an extended light sheet to provide ...
    • Dynamics of optically levitated microparticles in vacuum placed in 2D and 3D optical potentials possessing orbital angular momentum 

      Arita, Yoshihiko; Mazilu, Michael; Chen, Mingzhou; Vettenburg, Tom; Aunõn, Juan M.; Wright, Ewan M.; Dholakia, Kishan (SPIE, 2017-05-19) - Conference item
      We demonstrate the transfer of orbital angular momentum to optically levitated microparticles in vacuum [1]. We prepare two-dimensional and three-dimensional optical potentials. In the former case the microparticle is ...
    • Light-sheet microscopy using an Airy beam 

      Vettenburg, Tom; Dalgarno, Heather Isla Campbell; Nylk, Jonathan; Coll-Lladó, Clara; Ferrier, David Ellard Keith; Cizmar, Tomas; Gunn-Moore, Frank J; Dholakia, Kishan (2014-05) - Journal article
      Light-sheet microscopy facilitates rapid, high-contrast, volumetric imaging with minimal sample exposure. However, the rapid divergence of a traditional Gaussian light sheet restricts the field of view (FOV) that provides ...
    • 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 ...
    • Orbital-angular-momentum transfer to optically levitated microparticles in vacuum 

      Mazilu, Michael; Arita, Yoshihiko; Vettenburg, Tom; Aunon-Garcia, Juan Miguel; Wright, Ewan Malcolm; Dholakia, Kishan (2016-11) - Journal article
      We demonstrate the transfer of orbital angular momentum to an optically levitated microparticle in vacuum. The microparticle is placed within a Laguerre-Gaussian beam and orbits the annular beam profile with increasing ...
    • Random super-prism wavelength meter 

      Mazilu, Michael; Vettenburg, Tom; Di Falco, Andrea; Dholakia, Kishan (2014-01-01) - Journal article
      The speckle pattern arising from a thin random, disordered scatterer may be used to detect the transversal mode of an incident beam. On the other hand, speckle patterns originating from meter-long multimode fibers can be ...
    • Rotation of two trapped microparticles in vacuum : observation of optically mediated parametric resonances 

      Arita, Yoshihiko; Mazilu, Michael; Vettenburg, Tom; Wright, Ewan; Dholakia, Kishan (2015-10-15) - Journal article
      We demonstrate trapping and rotation of two mesoscopic particles in vacuum using a spatial-light-modulator-based approach to trap more than one particle, induce controlled rotation of individual particles, and mediate ...
    • Simultaneous determination of the constituent azimuthal and radial mode indices for light fields possessing orbital angular momentum 

      Mazilu, Michael; Mourka, Areti; Vettenburg, Tom; Wright, Ewan M.; Dholakia, Kishan (2012-06-04) - Journal article
      A wide array of diffractive structures such as arrays of pinholes, triangular apertures, slits, and holograms have all recently been used to measure the azimuthal index of individual Laguerre-Gaussian beams. Here, we ...
    • Wavefront corrected light sheet microscopy in turbid media 

      Dalgarno, Heather Isla Campbell; Cizmar, Tomas; Vettenburg, Tom; Nylk, Jonathan; Gunn-Moore, Frank J; Dholakia, Kishan (2012-05) - Journal article
      Light sheet microscopy is a powerful method for three-dimensional imaging of large biological specimens. However, its imaging ability is greatly diminished by sample scattering and aberrations. Optical clearing, Bessel ...