Scanning near-field optical microscope working with a CdSe∕ZnS quantum dot based optical detector
We have developed a scanning near-field optical microscope that uses a subwavelength-sized silica sphere covered with CdSe∕ZnS quantum dots as a fluorescent optical detector. Due to the good photostability of these semiconducting particles, we are routinely able to perform several successive scans w...
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| Veröffentlicht in: | Review of scientific instruments 2006-06, Vol.77 (6) |
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| container_title | Review of scientific instruments |
| container_volume | 77 |
| creator | Aigouy, L. Samson, B. Julié, G. Mathet, V. Lequeux, N. Nì. Allen, C. Diaf, H. Dubertret, B. |
| description | We have developed a scanning near-field optical microscope that uses a subwavelength-sized silica sphere covered with CdSe∕ZnS quantum dots as a fluorescent optical detector. Due to the good photostability of these semiconducting particles, we are routinely able to perform several successive scans without a noticeable decrease of fluorescence signals. As an example, we will show some images of the light immediately transmitted through 300nm wide slits made in a thin gold film. We will also discuss the advantages of such fluorescent probes compared to other near-field optical techniques. |
| doi_str_mv | 10.1063/1.2204621 |
| format | Article |
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| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2006-06, Vol.77 (6) |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_2204621 |
| source | AIP Journals Complete; AIP Digital Archive |
| title | Scanning near-field optical microscope working with a CdSe∕ZnS quantum dot based optical detector |
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