Search: id:"swepub:oai:gup.ub.gu.se/158458" >
Unconventional stru...
Unconventional structure-assisted optical manipulation of high-index nanowires in liquid crystals
-
- Engström, David, 1976 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
-
Varney, Michael C. M. (author)
-
- Persson, Martin, 1979 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
-
show more...
-
Trivedi, Rahul P. (author)
-
Bertness, Kris A. (author)
-
- Goksör, Mattias, 1975 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
-
Smalyukh, Ivan I. (author)
-
show less...
-
(creator_code:org_t)
- 2012
- 2012
- English.
-
In: Optics Express. - 1094-4087. ; 20:7, s. 7741-7748
- Related links:
-
https://gup.ub.gu.se...
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- Stable optical trapping and manipulation of high-index particles in low-index host media is often impossible due to the dominance of scattering forces over gradient forces. Here we explore optical manipulation in liquid crystalline structured hosts and show that robust optical manipulation of high-index particles, such as GaN nanowires, is enabled by laser-induced distortions in long-range molecular alignment, via coupling of translational and rotational motions due to helicoidal molecular arrangement, or due to elastic repulsive interactions with confining substrates. Anisotropy of the viscoelastic liquid crystal medium and particle shape give rise to a number of robust unconventional trapping capabilities, which we use to characterize defect structures and study rheological properties of various thermotropic liquid crystals.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Laser trapping
- Liquid crystals
- Nanomaterials
- Three-dimensional microscopy
- Three-dimensional microscopy
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Engström, David, ...
-
Varney, Michael ...
-
Persson, Martin, ...
-
Trivedi, Rahul P ...
-
Bertness, Kris A ...
-
Goksör, Mattias, ...
-
show more...
-
Smalyukh, Ivan I ...
-
show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Materials Engine ...
-
and Other Materials ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- Articles in the publication
-
Optics Express
- By the university
-
University of Gothenburg
-
Chalmers University of Technology