| Autor: |
Jianan Shao, Ruiyi Chen, Dehua Zhu, Yu Cao, Wenwen Liu, Wei Xue |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Photonics, Vol 10, Iss 7, p 775 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2304-6732 |
| DOI: |
10.3390/photonics10070775 |
| Popis: |
A label-free microscopy technology, dark-field microscopy, is widely used for providing high-contrast imaging for weakly scattering materials and unstained samples. However, traditional dark-field microscopes often require additional components and larger condensers as the numerical aperture increases. A solution to this is the use of a meta-surface slide. This slide utilizes a multilayer meta-surface and quantum dots to convert incident white light into a red glow cone emitted at a larger angle. This enables the slide to be used directly with conventional biological microscopy to achieve dark-field imaging. This paper focuses on the design and preparation of the meta-surface and demonstrates that using the meta-surface in a standard transmission optical microscope results in a dark-field image with higher contrast than a bright-field image, especially when observing samples with micron-sized structures. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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