Nonlinear core-shell yagi-uda nanoantenna for highly tunable directive emission
Paper i proceeding, 2017

We propose a novel type of tunable Yagi-Uda nanoantenna composed of metal-dielectric (Ag- Ge) core-shell nanoparticles. By choosing the appropriate nanoantenna parameters we excite a Van Hove singularity, supporting high values of directivity and Purcell factor within the same narrow frequency range. Our analysis reveals the possibility of flexible dynamical tuning of the hybrid nanoantenna emission pattern via electron-hole plasma excitation by additional fs-laser signal pulses.

Författare

R.S. Savelev

ITMO University

O.N. Sergaeva

University of Missouri

Denis Baranov

Chalmers, Fysik

A. E. Krasnok

ITMO University

The University of Texas at Austin

A. Al'u

The University of Texas at Austin

2017 Conference on Lasers and Electro-Optics, CLEO 2017 - Proceedings

Vol. Part F43-CLEO_AT 2017

2017 Conference on Lasers and Electro-Optics, CLEO 2017
San Jose, USA,

Ämneskategorier

Fysik

DOI

10.1364/CLEO_AT.2017.JTh2A.13

Mer information

Senast uppdaterat

2018-12-11