Controlled formation of optically bound matter in evanescent fields
In this paper, we detail two techniques for standing wave evanescent field optical trapping utilizing total internal reflection at a prism-water interface. Firstly, we describe an actively-locked cavity enhancement technique that generates circulating powers in excess of 10 W over an area of 150 μm...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1797061938656575488 |
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| author | Summers, MD Dear, R Taylor, J Ritchie, G |
| author_facet | Summers, MD Dear, R Taylor, J Ritchie, G |
| author_sort | Summers, MD |
| collection | OXFORD |
| description | In this paper, we detail two techniques for standing wave evanescent field optical trapping utilizing total internal reflection at a prism-water interface. Firstly, we describe an actively-locked cavity enhancement technique that generates circulating powers in excess of 10 W over an area of 150 μm × 75 μm on the prism surface using a 400 mW source, as well as providing control over the shape of the underlying transverse cavity mode. Secondly, we have combined an inverted optical tweezers with a counter-propagating evanescent wave trapping experiment, providing a useful platform for exploring light scattering interactions between small ensembles of particles. The resulting structures are compared to our theoretical model based upon Generalised Lorentz-Mie Theory. © 2010 SPIE. |
| first_indexed | 2024-03-06T20:38:21Z |
| format | Journal article |
| id | oxford-uuid:336501ba-e6b5-4687-9613-74922f6d8140 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:38:21Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:336501ba-e6b5-4687-9613-74922f6d81402022-03-26T13:20:00ZControlled formation of optically bound matter in evanescent fieldsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:336501ba-e6b5-4687-9613-74922f6d8140EnglishSymplectic Elements at Oxford2010Summers, MDDear, RTaylor, JRitchie, GIn this paper, we detail two techniques for standing wave evanescent field optical trapping utilizing total internal reflection at a prism-water interface. Firstly, we describe an actively-locked cavity enhancement technique that generates circulating powers in excess of 10 W over an area of 150 μm × 75 μm on the prism surface using a 400 mW source, as well as providing control over the shape of the underlying transverse cavity mode. Secondly, we have combined an inverted optical tweezers with a counter-propagating evanescent wave trapping experiment, providing a useful platform for exploring light scattering interactions between small ensembles of particles. The resulting structures are compared to our theoretical model based upon Generalised Lorentz-Mie Theory. © 2010 SPIE. |
| spellingShingle | Summers, MD Dear, R Taylor, J Ritchie, G Controlled formation of optically bound matter in evanescent fields |
| title | Controlled formation of optically bound matter in evanescent fields |
| title_full | Controlled formation of optically bound matter in evanescent fields |
| title_fullStr | Controlled formation of optically bound matter in evanescent fields |
| title_full_unstemmed | Controlled formation of optically bound matter in evanescent fields |
| title_short | Controlled formation of optically bound matter in evanescent fields |
| title_sort | controlled formation of optically bound matter in evanescent fields |
| work_keys_str_mv | AT summersmd controlledformationofopticallyboundmatterinevanescentfields AT dearr controlledformationofopticallyboundmatterinevanescentfields AT taylorj controlledformationofopticallyboundmatterinevanescentfields AT ritchieg controlledformationofopticallyboundmatterinevanescentfields |