Second order nonlinear frequency generation at the nanoscale in dielectric platforms

Year: 2022

Authors: Rocco D., Morales R.C., Xu L., Zilli A., Vinel V., Finazzi M., Celebrano M., Leo G., Rahmani M., Jagadish C., Tan H., Neshev D., De Angelis C.

Autors Affiliation: Department of Information Engineering, University of Brescia, Brescia, Italy; CNR-INO (National Institute of Optics), Brescia, Italy; CNIT, Consorzio Nazionale Interuniversitario per le Telecomunicazioni, Italy; Department of Electronic Materials Engineering, Research School of Physics, ARC Centre of Excellence for Transformative Meta-Optical Systems, the Australian National University, Canberra, Australia; Advanced Optics Photonics Laboratory, Department of Engineering, School of Science Technology, Nottingham Trent University, Nottingham, United Kingdom; Department of Physics, Politecnico Di Milano, Milano, Italy; Matyriaux Et Phynomines Quantiques, University de Paris – Sorbonne Paris City, Paris, France

Abstract: Nonlinear frequency generation at the nanoscale is a hot research topic which is gaining increasing attention in nanophotonics. The generation of harmonics in subwavelength volumes is historically associated with the enhancement of electric fields in the interface of plasmonic structures. Recently, new platforms based on high-index dielectric nanoparticles have emerged as promising alternatives to plasmonic structures for many applications. By exploiting optically induced electric and magnetic response via multipolar Mie resonances, dielectric nanoelements may lead to innovative opportunities in nanoscale nonlinear optics. Dielectric optical nanoantennas enlarge the volume of light-matter interaction with respect to their plasmonic counterpart, since the electromagnetic field can penetrate such materials, and therefore producing a high throughput of the generated harmonics. In this review, we first recap recent developments obtained in high refractive index structures, which mainly concern nonlinear second order effects. Moreover, we discuss configurations of dielectric nano-devices where reconfigurable nonlinear behavior is achieved. The main focus of this work concerns efficient Sum Frequency Generation in dielectric nano-platforms. The reported results may serve as a reference for the development of new nonlinear devices for nanophotonic applications.


Volume: 7 (1)      Pages from: 2022992-1  to: 2022992-25

More Information: European Commission (899673, FETOPEN-01-2018-2019-2020); Consiglio Nazionale delle Ricerche (Joint Laboratories program, SAC.AD002.026); Ministero dell´Istruzione, dell´Universita e della Ricerca (2017MP7F8F, PRIN NOMEN); Australian Research Council (DP190101559, and CE200100010); Science for Peace and Security (OPTIMIST); The Uk Research and Innovation Future Leaders Fellowship (MR/T040513/1).
KeyWords: Dielectric nanoparticles; second harmonic generation; sum frequency generation; metasurface; nonlinearity; integrated manipulator
DOI: 10.1080/23746149.2021.2022992