Heterodyne dynamic light scattering for the characterization of particle dispersions
Particle self-diffusivities in unimodal and bimodal aqueous dispersions are characterized by dynamic light scattering (DLS) applying a heterodyne detection scheme. For unimodal dispersions close to infinite dilution, it could be evidenced that pure homodyne conditions cannot be realized, leading to...
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| Veröffentlicht in: | Applied optics (2004) 2023-10, Vol.62 (30), p.8007-8017 |
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| container_title | Applied optics (2004) |
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| creator | Wu, Wenchang Knoll, Matthias Samuel Günter Giraudet, Cédric Heinrich Rausch, Michael Fröba, Andreas Paul |
| description | Particle self-diffusivities in unimodal and bimodal aqueous dispersions are characterized by dynamic light scattering (DLS) applying a heterodyne detection scheme. For unimodal dispersions close to infinite dilution, it could be evidenced that pure homodyne conditions cannot be realized, leading to an increasing underestimation of diffusivity with a decreasing concentration. Even for bimodal dispersions and neglecting any local oscillator field, the coherent superposition of scattered light from different particle species hinders a clear assignment of the measured signals and their evaluation for diffusivity. In this case, the impact of a cross term on the determined diffusivities cannot be neglected. The results emphasize that the use of a heterodyne detection scheme in DLS experiments is a key aspect for an accurate determination of particle diffusivities in low-concentrated unimodal and bimodal dispersions. |
| doi_str_mv | 10.1364/AO.502659 |
| format | Article |
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The results emphasize that the use of a heterodyne detection scheme in DLS experiments is a key aspect for an accurate determination of particle diffusivities in low-concentrated unimodal and bimodal dispersions.</description><subject>Coherent scattering</subject><subject>Diffusivity</subject><subject>Dilution</subject><subject>Dispersions</subject><subject>Photon correlation spectroscopy</subject><issn>1559-128X</issn><issn>2155-3165</issn><issn>1539-4522</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpdkE1LAzEQhoMoWKsH_0HAix625nuTYyl-QaGXCt6WaZptU7abNUkP9debUk9eZoZ3nnkZXoTuKZlQrsTzdDGRhClpLtCIUSkrTpW8RKMymooy_XWNblLaEcKlMPUILd9ddjGsj73DpcDeW9z5zTbjZCGXle83uA0R563DdgsR7En8gexDj0OLB4jZ265c-zS4mIqcbtFVC11yd399jD5fX5az92q-ePuYTeeVZYbkysBaa9K6tmUAVlPJWK1MTZ0VYr0CEDVfCcWF45axlQBFHWhaG044aFkLPkaPZ98hhu-DS7nZ-2Rd10HvwiE1TBuliZDUFPThH7oLh9iX7wqlCa-NoqRQT2fKxpBSdG0zRL-HeGwoaU75NtNFc86X_wJPkW0_</recordid><startdate>20231020</startdate><enddate>20231020</enddate><creator>Wu, Wenchang</creator><creator>Knoll, Matthias Samuel Günter</creator><creator>Giraudet, Cédric</creator><creator>Heinrich Rausch, Michael</creator><creator>Fröba, Andreas Paul</creator><general>Optical Society of America</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9616-3888</orcidid></search><sort><creationdate>20231020</creationdate><title>Heterodyne dynamic light scattering for the characterization of particle dispersions</title><author>Wu, Wenchang ; Knoll, Matthias Samuel Günter ; Giraudet, Cédric ; Heinrich Rausch, Michael ; Fröba, Andreas Paul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c290t-9ad880feff2aac8152276971ec44dbaa473b4634e3c22b4a61ea8179303a85743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Coherent scattering</topic><topic>Diffusivity</topic><topic>Dilution</topic><topic>Dispersions</topic><topic>Photon correlation spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Wenchang</creatorcontrib><creatorcontrib>Knoll, Matthias Samuel Günter</creatorcontrib><creatorcontrib>Giraudet, Cédric</creatorcontrib><creatorcontrib>Heinrich Rausch, Michael</creatorcontrib><creatorcontrib>Fröba, Andreas Paul</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Applied optics (2004)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Wenchang</au><au>Knoll, Matthias Samuel Günter</au><au>Giraudet, Cédric</au><au>Heinrich Rausch, Michael</au><au>Fröba, Andreas Paul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heterodyne dynamic light scattering for the characterization of particle dispersions</atitle><jtitle>Applied optics (2004)</jtitle><date>2023-10-20</date><risdate>2023</risdate><volume>62</volume><issue>30</issue><spage>8007</spage><epage>8017</epage><pages>8007-8017</pages><issn>1559-128X</issn><eissn>2155-3165</eissn><eissn>1539-4522</eissn><abstract>Particle self-diffusivities in unimodal and bimodal aqueous dispersions are characterized by dynamic light scattering (DLS) applying a heterodyne detection scheme. 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| identifier | ISSN: 1559-128X |
| ispartof | Applied optics (2004), 2023-10, Vol.62 (30), p.8007-8017 |
| issn | 1559-128X 2155-3165 1539-4522 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2896804519 |
| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Coherent scattering Diffusivity Dilution Dispersions Photon correlation spectroscopy |
| title | Heterodyne dynamic light scattering for the characterization of particle dispersions |
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