Confocal surface plasmon microscopy with pupil function engineering
Surface Plasmon microscopy can measure local changes of refractive index on the micron scale. Interferometric plasmon imaging delivers quantitative high spatial resolution sensitive to refractive index. In addition the so called V(z) method allows image contrast to be controlled by varying the sampl...
| Main Authors: | , , , |
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| Format: | Article |
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Optical Society of America
2012
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| Online Access: | https://eprints.nottingham.ac.uk/2868/ |
| _version_ | 1848790896028418048 |
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| author | Zhang, Bei Pechprasarn, Suejit Zhang, Jing Somekh, Michael G. |
| author_facet | Zhang, Bei Pechprasarn, Suejit Zhang, Jing Somekh, Michael G. |
| author_sort | Zhang, Bei |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Surface Plasmon microscopy can measure local changes of refractive index on the micron scale. Interferometric plasmon imaging delivers quantitative high spatial resolution sensitive to refractive index. In addition the so called V(z) method allows image contrast to be controlled by varying the sample defocus without substantially degrading spatial resolution. Here, we show how a confocal system provides a simpler and more stable alternative. This system, however, places greater demands on the dynamic range of the system. We therefore use a spatial light modulator to engineer the microscope pupil function to suppress light that does not contribute to the signal. |
| first_indexed | 2025-11-14T18:19:53Z |
| format | Article |
| id | nottingham-2868 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:19:53Z |
| publishDate | 2012 |
| publisher | Optical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-28682020-05-04T16:32:48Z https://eprints.nottingham.ac.uk/2868/ Confocal surface plasmon microscopy with pupil function engineering Zhang, Bei Pechprasarn, Suejit Zhang, Jing Somekh, Michael G. Surface Plasmon microscopy can measure local changes of refractive index on the micron scale. Interferometric plasmon imaging delivers quantitative high spatial resolution sensitive to refractive index. In addition the so called V(z) method allows image contrast to be controlled by varying the sample defocus without substantially degrading spatial resolution. Here, we show how a confocal system provides a simpler and more stable alternative. This system, however, places greater demands on the dynamic range of the system. We therefore use a spatial light modulator to engineer the microscope pupil function to suppress light that does not contribute to the signal. Optical Society of America 2012-03-15 Article PeerReviewed Zhang, Bei, Pechprasarn, Suejit, Zhang, Jing and Somekh, Michael G. (2012) Confocal surface plasmon microscopy with pupil function engineering. Optics Express, 20 (7). pp. 7388-7397. ISSN 1094-4087 http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-7-7388 doi:10.1364/OE.20.007388 doi:10.1364/OE.20.007388 |
| spellingShingle | Zhang, Bei Pechprasarn, Suejit Zhang, Jing Somekh, Michael G. Confocal surface plasmon microscopy with pupil function engineering |
| title | Confocal surface plasmon microscopy with pupil function engineering |
| title_full | Confocal surface plasmon microscopy with pupil function engineering |
| title_fullStr | Confocal surface plasmon microscopy with pupil function engineering |
| title_full_unstemmed | Confocal surface plasmon microscopy with pupil function engineering |
| title_short | Confocal surface plasmon microscopy with pupil function engineering |
| title_sort | confocal surface plasmon microscopy with pupil function engineering |
| url | https://eprints.nottingham.ac.uk/2868/ https://eprints.nottingham.ac.uk/2868/ https://eprints.nottingham.ac.uk/2868/ |