Focussed electron beam induced deposition of platinum plasmonic antennae

Ashleigh H. Heffernan; Daniel Stavrevski; Ivan Maksymov; Roman Kostecki; Heike Ebendorff-Heidepriem; Andrew D. Greentree; Brant C. Gibson

doi:10.1117/12.2289380

22 February 2018 Focussed electron beam induced deposition of platinum plasmonic antennae

Ashleigh H. Heffernan, Daniel Stavrevski, Ivan Maksymov, Roman Kostecki, Heike Ebendorff-Heidepriem, Andrew D. Greentree, Brant C. Gibson

Author Affiliations +

Proceedings Volume 10544, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XI; 105440J (2018) https://doi.org/10.1117/12.2289380
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

The direct write of photonic elements onto substrates presents opportunities for rapid prototyping and novel sensing architectures in domains inaccessible to traditional lithography. In particular, focussed electron beam induced deposition (FEBID) of platinum is a convenient technology for such direct-write applications with the advantage of relatively controlled deposition parameters and sub-10 nm resolution. One issue for FEBID of platinum is that the precursor gas contains a relatively high carbon content, which in turn leads to carbonaceous deposits in the final structure. Here we explore the creation of plasmonic nanoantennae using FEBID platinum. We compare as-deposited and annealed antenna with heights of 40 nm and 56 nm, showing the effect of annealing on the carbon concentration and hence the optical properties. These results are compared with modelling using Mie scattering theory. Our results show that FEBID platinum is a useful material for the direct-write of plasmonic nanoantenna.

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Ashleigh H. Heffernan, Daniel Stavrevski, Ivan Maksymov, Roman Kostecki, Heike Ebendorff-Heidepriem, Andrew D. Greentree, and Brant C. Gibson "Focussed electron beam induced deposition of platinum plasmonic antennae", Proc. SPIE 10544, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XI, 105440J (22 February 2018); https://doi.org/10.1117/12.2289380

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