Abstract: In microscale optoelectronics, the possibility to precisely control the spatial distribution of the active medium leads to optimization of systems and devices. At the nanoscale, this issue still constitutes a challenge, especially within the frame of hybrid plasmonic nano-emitters based on coupling between quantum emitters and metal nanocavities [1].
We studied and exploited the controlled nanoscale spatial positioning of semiconductor quantum emitters in the close vicinity of metal nanostructures. This control relies on plasmon-assisted nano-polymerization [2,3] of a photosensitive formulation that hosts nano-emitters [4,5]. In addition to offering a promising platform for nanochemistry, this approach enables the design of the symmetry of the medium surrounding plasmonic nano-antenna.
Through selected examples, it is shown that this approach has opened many new avenues and concepts, such as
- Polarization-sensitive photoluminescence [6] (see Fig. 1 as an illustration)
- Polarization-driven color selection [3]
- Life time engineering [7]
- Rationalized plasmon-assisted donor-acceptor energy transfer
- Single photon switch that is driven by polarization [6]
References
[1] Gonçalves, P. A. D et al. 2020. Nat. Commun., 11, 366.
[2] Ibn El Ahrach, H. et al. 2007. Phys. Rev. Lett., 98, 107402.
[3] Zhou, X et al. 2015. Nano Lett., 15, 7458.[4] Ritacco, T. et al. 2021. ACS Appl. Nano Mater., 4, 6916.
[5] Issa, A. et al. 2021. ACS Appl. Mater. Interfaces, 13, 41846.
[6] Ge, D. et al. 2020. Nat. Commun., 11, 3414.
[7] Ge, D. et al. 2022. Photon. Res., 10, 1552.