Light-induced phase transitions of colloidal monolayers with crystalline order


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ZAIDOUNY, Lamiss, Thomas BOHLEIN, Roland ROTH, Clemens BECHINGER, 2013. Light-induced phase transitions of colloidal monolayers with crystalline order. In: Soft Matter. 9(38), pp. 9230-9236. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/C3SM50945A

@article{Zaidouny2013Light-39280, title={Light-induced phase transitions of colloidal monolayers with crystalline order}, year={2013}, doi={10.1039/C3SM50945A}, number={38}, volume={9}, issn={1744-683X}, journal={Soft Matter}, pages={9230--9236}, author={Zaidouny, Lamiss and Bohlein, Thomas and Roth, Roland and Bechinger, Clemens} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:contributor>Bechinger, Clemens</dc:contributor> <dspace:hasBitstream rdf:resource=""/> <dcterms:available rdf:datatype="">2017-06-14T09:50:25Z</dcterms:available> <dcterms:isPartOf rdf:resource=""/> <dc:creator>Roth, Roland</dc:creator> <dc:rights>terms-of-use</dc:rights> <dcterms:abstract xml:lang="eng">We experimentally study the phase behavior of a charge-stabilized two-dimensional colloidal crystal which is subjected to a one-dimensional periodic light field. Such light fields are created by a scanned optical line tweezer which allows the variation of the periodicity without optical realignments. In order to realize a wide range of line spacings relative to the lattice constant, we use a suspension of silica particles in bromobenzene. This colloidal system has a Debye screening length of about 4.6 μm which results in the formation of crystals with lattice constants up to 20 μm. Because the refractive index of bromobenzene is larger than that of the colloids, optical gradient forces lead to the attraction of particles at regions where the intensity is smallest. Depending on the depth and periodicity of the optical potential, we observe the light-induced assembly of colloids into triangular, rhombic and square phases.</dcterms:abstract> <dspace:isPartOfCollection rdf:resource=""/> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Bohlein, Thomas</dc:creator> <dcterms:issued>2013</dcterms:issued> <dc:date rdf:datatype="">2017-06-14T09:50:25Z</dc:date> <dcterms:rights rdf:resource=""/> <dc:language>eng</dc:language> <dc:creator>Zaidouny, Lamiss</dc:creator> <dcterms:hasPart rdf:resource=""/> <dc:contributor>Bohlein, Thomas</dc:contributor> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <bibo:uri rdf:resource=""/> <dcterms:title>Light-induced phase transitions of colloidal monolayers with crystalline order</dcterms:title> <dc:contributor>Zaidouny, Lamiss</dc:contributor> <dc:creator>Bechinger, Clemens</dc:creator> <dc:contributor>Roth, Roland</dc:contributor> </rdf:Description> </rdf:RDF>

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