Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals

We describe and analyze experiments, where optical manipulation of small colloidal particles in the nematic liquid crystal (NLC) was used to create artificial colloidal structures, such as 1D chains and 2D colloidal crystals, and superstructures of different types of colloids. In all cases, the coll...

সম্পূর্ণ বিবরণ

গ্রন্থ-পঞ্জীর বিবরন
প্রধান লেখক: Muševič, I, Škarabot, M, Ravnik, M, Tkalec, U, Nych, A, Ognysta, U, Nazarenko, V, Žumer, S
বিন্যাস: Journal article
ভাষা:English
প্রকাশিত: 2008
_version_ 1826257134138949632
author Muševič, I
Škarabot, M
Ravnik, M
Tkalec, U
Nych, A
Ognysta, U
Nazarenko, V
Žumer, S
author_facet Muševič, I
Škarabot, M
Ravnik, M
Tkalec, U
Nych, A
Ognysta, U
Nazarenko, V
Žumer, S
author_sort Muševič, I
collection OXFORD
description We describe and analyze experiments, where optical manipulation of small colloidal particles in the nematic liquid crystal (NLC) was used to create artificial colloidal structures, such as 1D chains and 2D colloidal crystals, and superstructures of different types of colloids. In all cases, the colloidal particles are strongly bound to each other, with a typical pair interaction energy of several 1000 kBT per 1μm size particle. There are two distinct mechanisms of colloidal binding in a spatially homogeneous NLC: (i) binding via spatially localized topological (point) defects, and (ii) binding via entangled topological defects, where the defect line winds around and wraps several colloidal particles.
first_indexed 2024-03-06T18:13:18Z
format Journal article
id oxford-uuid:03c2b55c-be3c-4b19-94fe-43e374dd3edf
institution University of Oxford
language English
last_indexed 2024-03-06T18:13:18Z
publishDate 2008
record_format dspace
spelling oxford-uuid:03c2b55c-be3c-4b19-94fe-43e374dd3edf2022-03-26T08:48:05ZOptical manipulation of nematic colloids: Wires, superstructures, and 2D crystalsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:03c2b55c-be3c-4b19-94fe-43e374dd3edfEnglishSymplectic Elements at Oxford2008Muševič, IŠkarabot, MRavnik, MTkalec, UNych, AOgnysta, UNazarenko, VŽumer, SWe describe and analyze experiments, where optical manipulation of small colloidal particles in the nematic liquid crystal (NLC) was used to create artificial colloidal structures, such as 1D chains and 2D colloidal crystals, and superstructures of different types of colloids. In all cases, the colloidal particles are strongly bound to each other, with a typical pair interaction energy of several 1000 kBT per 1μm size particle. There are two distinct mechanisms of colloidal binding in a spatially homogeneous NLC: (i) binding via spatially localized topological (point) defects, and (ii) binding via entangled topological defects, where the defect line winds around and wraps several colloidal particles.
spellingShingle Muševič, I
Škarabot, M
Ravnik, M
Tkalec, U
Nych, A
Ognysta, U
Nazarenko, V
Žumer, S
Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title_full Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title_fullStr Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title_full_unstemmed Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title_short Optical manipulation of nematic colloids: Wires, superstructures, and 2D crystals
title_sort optical manipulation of nematic colloids wires superstructures and 2d crystals
work_keys_str_mv AT musevici opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT skarabotm opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT ravnikm opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT tkalecu opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT nycha opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT ognystau opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT nazarenkov opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals
AT zumers opticalmanipulationofnematiccolloidswiressuperstructuresand2dcrystals