421 citations · 686 across the 11 of their papers we have counts for
9 papers · 1 filter
Topology of three-dimensional active nematic turbulence confined to droplets
Simon Čopar, Jure Aplinc, Žiga Kos +2
Active nematics contain topological defects which under sufficient activity move, create and annihilate in a chaotic quasi-steady state, called active turbulence. However, understa…
Generation of vector beams with liquid crystal disclination lines
Miha Čančula, Miha Ravnik, Slobodan Žumer
We report that guiding light beams, ranging from continuous beams to femtosecond pulses, along liquid crystal defect lines can transform them into vector beams with various polariz…
Singular Values, Nematic Disclinations, and Emergent Biaxiality
Simon Čopar, Mark R. Dennis, Randall D. Kamien +1
Both uniaxial and biaxial nematic liquid crystals are defined by orientational ordering of their building blocks. While uniaxial nematics only orient the long molecular axis, biaxi…
Quaternions and hybrid nematic disclinations
Simon Čopar, Slobodan Žumer
Disclination lines in nematic liquid crystals can exist in different geometric conformations, characterised by their director profile. In certain confined, colloidal and even more…
Topological and geometric decomposition of nematic textures
Simon Čopar, Slobodan Žumer
Directional media, such as nematic liquid crystals and ferromagnets, are characterized by their topologically stabilized defects in directional order. In nematics, boundary conditi…
Reconfigurable knots and links in chiral nematic colloids
Uroš Tkalec, Miha Ravnik, Simon Čopar +2
Tying knots and linking microscopic loops of polymers, macromolecules, or defect lines in complex materials is a challenging task for material scientists. We demonstrate the knotti…