Accurate Transfer of Individual Nanoparticles onto Single Photonic Nanostructures

J. Redolat; M. Camarena-Pérez; A. Griol; M. Kovylina; A. Xomalis; J. J. Baumberg; A. Martínez; E. Pinilla-Cienfuegos

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arXiv · 2208.12593

Accurate Transfer of Individual Nanoparticles onto Single Photonic Nanostructures

J. Redolat·M. Camarena-Pérez·A. Griol·M. Kovylina·A. Xomalis·J. J. Baumberg·A. Martínez·E. Pinilla-Cienfuegos

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Abstract

Controlled integration of metallic nanoparticles (NPs) onto photonic nanostructures enables realization of complex devices for extreme light confinement and enhanced light-matter interaction. This can be achieved combining Nanoparticle-on-Mirror (NPoM) nanocavities with the light manipulation capabilities of micron-scale metallic antennas and/or photonic integrated waveguides. However, metallic nanoparticles are usually deposited via drop-casting, which prevents their accurate positioning. Here we present a methodology for precise transfer and positioning of individual NPs onto different photonic nanostructures. The method is based on soft lithography printing that employs elastomeric stamp-assisted transfer of individual NPs onto a single nanostructure. It can also parallel imprint many individual NPs with high throughput and accuracy in a single step. Raman spectroscopy confirms enhanced light-matter interactions in the resulting NPoM-based devices. Our method mixes top-down and bottom-up nanofabrication techniques and shows the potential of building complex photonic nanodevices for applications ranging from enhanced sensing and spectroscopy to signal processing.

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J. Redolat, M. Camarena-Pérez, A. Griol, M. Kovylina, A. Xomalis, J. J. Baumberg, A. Martínez, E. Pinilla-Cienfuegos. 2022-08-26. Accurate Transfer of Individual Nanoparticles onto Single Photonic Nanostructures. https://arxiv.org/abs/2208.12593

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