Scanning Near-Field Fluorescence Microscopy Applied to ESEM
Authors: Gong, P; Yang, HX; Gao, H; Zhang, BH; Xie, L
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 31 Issue: 8 Pages: 615-618 Published: APR 15 2019 Language: English Document type: Article
A scanning near-field fluorescence microscopy for in situ test is demonstrated in this letter. The scanning near-field fluorescence microscopy can be applied to commercial environmental scanning electron microscopy (ESEM) without changing the ESEM performance. The designed scanning near-field fluorescence microscopy combines the advantage of the ESEM and scanning near-field optical microscopy (SNOM). The CdSe/ZnS quantum dot samples are prepared to verify system performance. The system offers fluorescence image and topography image simultaneously with a high depth and high resolution, thus permitting further ingredient and functional research. The topography image spatial resolution and the fluorescence image spatial resolution are below 130 nm and 115 nm, respectively, with a tip aperture of similar to 100 nm. The image range reaches 300 x 300 mu m by virtue of the micromanipulators and image stitching technology.