Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, P. R. China.
Nanoscale. 2018 Aug 30;10(34):16193-16200. doi: 10.1039/c8nr05871g.
Plasmonic photonic nanostructuring on the end facets of optical fibers may enable extensive applications of the miniaturized devices in sensors. However, the small area on the fiber tips and the large aspect ratio of the fiber body largely restrict direct fabrication, which is apparently the challenge in most of the nanopatterning techniques. Therefore, efficient and easily applicable transfer techniques are more practical for fabricating plasmonic nanodevices on the fiber tips. In this study, we report the fabrication of plasmonic photonic structures on large-area planar substrates, flexibilization of the structures into thin films, and transfer of these films onto the end facets of optical fibers. This strategy enables high-quality functionalization of fiber tips by plasmonic photonic devices, thus providing new approaches for sensor applications.
光纤端面的等离子体光子纳米结构可实现小型化器件在传感器中的广泛应用。然而，光纤尖端的小面积和光纤体的大纵横比极大地限制了直接制造，这显然是大多数纳米图案化技术的挑战。因此，对于在光纤尖端制造等离子体纳米器件，高效且易于应用的转移技术更为实用。在这项研究中，我们报告了在大面积平面衬底上制造等离子体光子结构，将结构柔性化为薄膜，并将这些薄膜转移到光纤端面上的方法。该策略通过等离子体光子器件实现了光纤尖端的高质量功能化，从而为传感器应用提供了新途径。
